Q 1 – Which of the following is a liquid at room temperature?
(a) Iron
(b) Bromine
(c) Iodine
(d) Phosphorus
Ans. (b) Bromine
Q 2 – The most reactive metal is
(a) copper
(b) silver
(c) potassium
(d) calcium
Ans. (c) potassium
Q 3 – The metal which is liquid at room temperature is
(a) sodium
(b) bromine
(c) calcium
(d) mercury
Ans. (d) mercury
Q 4 – Which one of the following metals is the most ductile?
(a) Aluminium
(b) Copper
(c) Silver
(d) Gold
Ans. (d) Gold
Q 5 – Which one of the following metals is the most reactive and stored in kerosene?
(a) Iron
(b) Gold
(c) Copper
(d) Potassium
Ans. (d) Potassium
Q 6 – Name the gas evolved when magnesium reacts with dilute hydrochloric acid
(a) Chlorine
(b) Oxygen
(c) hydrogen
(d) Nitrogen
Ans. (c) hydrogen
Q 7 – The metal which is not corroded by air, water and acid is
(a) copper
(b) zinc
(c) aluminium
(d) gold
Ans. (d) gold
Q 8 – Metals are
(a) soft and brittle
(b) hard and solid
(c) liquid
(d) generally liquid
Ans. (b) hard and solid
Q 9 – Materials having qualities of both metals and non-metals are
(a) alloys
(b) metalloids
(c) noble metals
(d) none of these
Ans. (b) metalloids
Q 10 – Which metal reacts readily with cold water?
(a) Gold
(b) Silver
(c) Magnesium
(d) Calcium
Ans. (d) Calcium
Q 12 – The best electrical conductor is
(a) gold
(b) copper
(c) silver
(d) aluminium The best electrical conductor is
Ans. (c) silver
Q 13 – Iron is galvanised by coating it with
(a) chromium
(b) sodium
(c) magnesium
(d) zinc
Ans. (d) zinc
Q 14 – Out of these, which one is more reactive with water?
(a) Sodium
(b) Magnesium
(c) Iron
(d) Copper
Ans. (a) Sodium
Q 15 – Boron is
(a) metal
(b) metalloid
(c) non-metal
(d) alkali
Ans. (b) metalloid
Q 16 – A mineral from which metal can be extracted on the commercial scale, economically is called
(a) ore
(b) metalloid
(e) corrosion
(d) metal
Ans. (a) ore
Q 17 – Sulphur reacts with hot concentrated nitric acid and produces:
(a) sulphur dioxide
(b) sulphur trioxide
(c) nitrogen dioxide
(d) sulphur dioxide and Nitrogen dioxide
Ans. (d) sulphur dioxide and Nitrogen dioxide
Sulphur reacts with hot concentrated nitric acid and produces sulphur dioxide, nitrogen
dioxide and water
Q 18 – The gas produced when metals react with sodium hydroxide is:
(a) nitrogen
(c) oxygen
(b) hydrogen
(d) water vapour
Ans. (b) hydrogen
Hydrogen gas is produced when metals react with sodium hydroxide
Q 19 – A liquid metal is:
(a) bromine
(c) iodine
(b) nitrogen
(d) mercury
Ans. (d) mercury
Mercury is liquid metal. Bromine, nitrogen and iodine are non-metals.
Q 20 – Metals are
(a) shiny
(b) hard
(c) sonorous
(d) all of these
Ans. (d) all of these
Q 21 – Non-metals are
(a) non-ductile
(b) non-sonorous
(c) non-malleable
(d) all of these
Ans. (d) all of these
Q 22 – Which of the following is a non-metal?
(a) Aluminium
(b) Oxygen
(c) Iron
(d) Silver
Ans. (b) Oxygen
Q 23 – Metalloids possess the properties of
(a) metals
(b) non-metals
(c) both metals and non-metals
(d) none of these
Ans.(c) both metals and non-metals
Q 25– The most reactive metal is
(a) copper
(b) zinc
(c) potassium
(d) gold
Ans. (c) potassium
Q 26 – Non-metals are
(a) generally gases
(b) generally liquids
(c) generally solids
(d) generally solid and gases
Ans. (d) generally solid and gases
Q 27 – Which of the following metal is stored in kerosene?
(a) Sodium
(b) Magnesium
(c) Phosphorus
(d) Zinc
Ans. (a) Sodium
Q 28 – Metal oxides are
(a) neutral
(b) basic
(c) acidic
(d) all of these
Ans. (b) basic
Q 29– The non-metal which is liquid at room temperature is
(a) bromine
(b) chlorine
(c) iodine
(d) carbon
Ans. (a) bromine
Q 30 – Which substance is used for making pencil lead?
(a) Sulphur
(b) Silicon
(c) Graphite
(d) Aluminium
Ans. (c) Graphite
Q 31 – Which non-metal is used in making glass?
(a) Graphite
(b) Sulphur
(c) Silica
(d) None of these
Ans. (c) Silica
Q 32 – Which metal is used in wrapping materials?
(a) Aluminium
(b) Zinc
(c) Copper
(d) None of these
Ans. (a) Aluminium
Q 33 – The metal found in the liquid state is
(a) mercury
(b) silver
(c) calcium
(d) sodium
Ans. (a) mercury
Q 34 – The most ductile metal is
(a) silver
(b) gold
(c) copper
(d) aluminium
Ans. (b) gold
Q 35 – Non-metals
(a) react with water
(b) do not react with water
(c) both (a) and (b)
(d) none of these
Ans. (b) do not react with water
Q 36 – Which of the following metals are soft enough to be even cut with a knife?
(a) Sodium
(b) Potassium
(c) Lithium
(d) All of these
Ans. (d) All of these
Q 37 – Which is the hardest substance?
(a) Gold
(b) Diamond
(c) Aluminium
(d) None of these
Ans. (b) Diamond
Q 38 – Metals react with acids to produce respective salts with the evolution of
(a) hydrogen gas
(b) oxygen gas
(c) CO2 gas
(d) none of these
Ans. a) hydrogen gas
Q 39 – In displacement reactions
(a) a more reactive metal displaces a less reactive metal.
(b) a less reactive metal displaces a more reactive metal.
(c) both (a) and (b)
(d) none of these
Ans. (a) a more reactive metal displaces a less reactive metal.
Q 40 – Which of the following non-metals are used in fertilisers?
(a) Nitrogen
(b) Phosphorus
(c) Both (a) and (b)
(d) None of these
Ans. (c) Both (a) and (b)
Q 41 – When non-metal reacts with water
(a) hydrogen gas is formed
(b) carbon dioxide gas is formed
(c) non-metals generally do not react with water.
(d) none of these.
Ans. (c) non-metals generally do not react with water.
Q 42 – The property of metals by which they can be beaten into thin sheets is called
(a) malleability
(b) ductility
(c) conduction
(d) expansion
Ans. (a) malleability
Q 43 – Which one of the following is a metal?
(a) C
(b) N
(c) Na
(d) O
Ans. (a) C
Q 44 – Which of the following does not show the property of malleability?
(a) Iron
(b) Graphite
(c) Aluminium
(d) Ans.
Ans. (b) Graphite Silver
Q 45 – Which one of the following is a good conductor of electricity?
(a) Iron
(b) Plastic
(c) Wood
(d) Glass
Ans. (a) Iron
Q 46 – The property of metal by which it can be drawn into wires is called
(a) conductivity
(b) malleability
(c) ductility
(d) flexibility
Ans. (c) ductility
Q 47 – The metals that produce ringing sounds are said to be
(a) malleable
(b) sonorous
(c) lustrous
(d) hard
Ans. (b) sonorous
Q 48 – The solution of ash of magnesium ribbon in water is
(a) acidic
(b) basic
(c) neutral
(d) none of these
Ans. (b) basic
Q 49 – When sulphur dioxide is dissolved in water
(a) sulphur is formed
(b) sulphur trioxide is formed
(c) sulphuric acid is formed
(d) sulphurous acid is formed
Ans. (d) sulphurous acid is formed
Q 50 – What is the chemical formula of sulphurous acid?
(a) H2SO4
(b) SO2
(c) SO3
(d) H2SO3
Ans. (d) H2SO3
Q 51 – Sodium metal is stored in
(a) water
(b) alcohol
(c) kerosene
(d) ether
Ans. (c) kerosene
Q 52 – Which one of the following metals reacts vigorously with oxygen and water?
(a) Sodium
(b) Iron
(c) Calcium
(d) Magnesium
Ans. (a) Sodium
Q 53 – What is the chemical formula of copper sulphate?
(a) CuSO4
(b) CuCO3
(c) CuCl2
(d) CuO
Ans. (a) CuSO4
Q 54 – Which gas is produced when metals react with acids?
(a) Oxygen
(b) Nitrogen
(c) Hydrogen
(d) Carbon dioxide
Ans. (c) Hydrogen
Q 55 – Which one of the following does not react with acids?
(a) Cu
(b) Ni
(c) Cr
(d) O
Ans. (d) O
Q 56 – Which one of the following gas burns with a ‘pop’ sound?
(a) Oxygen
(b) Hydrogen
(c) Chlorine
(d) Hydrogen sulphide
Ans. (b) Hydrogen
Q 57 – Which one of the following is applied to wounds as an antiseptic?
(a) Sodium
(b) Iodine
(c) Brass
(d) All of these
Ans. (b) Iodine
Q 57 – Which one of the following is a very reactive non-metal?
(a) Sodium
(b) Potassium
(c) Carbon
(d) Phosphorous
Ans. (d) Phosphorous
Q 56 – Fill in the blanks with suitable word/s.
1. Metals are ______ of heat and ______
Ans. good conductors, electricity
2. Iodine is a ______ having luster.
Ans. non-metal
3. ______ and ______ are kept in kerosene to avoid explosion. Sodium, potassium
Ans. Sodium, potassium
4. Non-metal oxides are ______ in nature.
Ans. acidic
5. _______ is more reactive than copper.
Ans. Zinc
6. Sulphur forms ______ oxides.
Ans. acidic
7. Magnesium forms ______ oxides.
Ans. basic
8. _______ is less reactive than iron.
Ans. Copper
9. All metals are hard except _______ and ______
Ans. sodium, potassium
10. Metals have generally_______melting and boiling points.
Ans. high
11. _______ are used in medicines as antiseptic.
Ans. Non-metals
12. The only liquid metal is ______
Ans. mercury
13. ______ is non-metal used in breathing by all living beings.
Ans. Oxygen
14. The metal which produces hydrogen gas on reaction with dilute hydrochloric acid as well as sodium hydroxide solution is ______
Ans. aluminium
15. _______ reacts with cold water vigorously.
Ans. Sodium
16. ………………….. metal is used in car batteries.
Ans. Lead
17. Zinc is used for galvanizing iron to protect it from …………………..
Ans. Rusting
18. Liquid ………………….. is used as rocket fuel.
Ans. Hydrogen
19. The oxides produced by the reaction of non-metals with oxygen are ………………….. in nature.
Ans. Acidic
20. Metals give ………………….. gas when they react with acids.
Ans. Hydrogen
21. ………………….. is used in electroplating because of its high shiny appearance
Ans. Chromium
Q 57 – True or False
1. Metals are non-sonorous. False
2. Metals react with water. True
3. Non-metals cannot be converted into wires. True
4. The only liquid metal is bromine. False
5. Sodium and potassium do not react vigorously with water and oxygen. False
6 Basic solution turns red litmus into the blue. True
7. Graphite is a good conductor of electricity. True
8. Generally, metallic oxides are basic and non-metallic oxides are acidic in nature. True
9. Chlorine is not a non-metal. False
10. Phosphorus is kept in water. True
11. All metals exist in solid form at room temperature. False
12. Rust formed on an iron objects is acidic in nature. False
13. Aluminium is more reactive than copper. True
14. Non-metals react with water to form a gas which burns with a ‘pop’ sound. False
15. All the gases are non-metals. True
16. Rust formed on iron objects is basic in nature. True
17. All metals exist in solid form at room temperature. False
18. Non-metals react with oxygen to from basic or neutral oxides False
19. Copper is less reactive than aluminium True
20. Sodium is a hard metal that cannot be cut with a knife. False
21. Chlorine is a non-metal. True
21. Non-metals can be drawn into wires. False
22 Metals do not react with water.False
Q 58 – Match the following
| Column I | Column II |
| 1. Malleable | (a) Can be transformed into wire |
| 2. Ductile | (b) For making crackers |
| 3. Oxygen | (c) Give sheets on hammering |
| 4. Copper | (d) For disinfecting water |
| 5. Sulphur | (e) All living beings inhale during breathing |
| 6. Diamond | (f) For making electric wires |
| 7. Sonority | (g) For making rails |
| 8. Iron | (h) Hardest non-metal |
| 9. Chlorine | (i) Ringing of bells |
| 10. Platinum | (j) Used in making ornaments |
Ans.
| Column I | Column II |
| 1. Malleable | (c) Give sheets on hammering |
| 2. Ductile | (a) Can be transformed into wire |
| 3. Oxygen | (e) All living beings inhale during breathing |
| 4. Copper | (f) For making electric wires |
| 5. Sulphur | (b) For making crackers |
| 6. Diamond | (h) Hardest non-metal |
| 7. Sonority | (i) Ringing of bells |
| 8. Iron | (g) For making rails |
| 9. Chlorine | (d) For disinfecting water |
| 10. Platinum | (j) Used in making ornaments |
Q 59 – Identify the non-metal which exhibits yellow colour.
(a) Silicon
(b) Phosphorus
(c) Sulphur
(d) Carbon
Ans. (c) Sulphur
Q 60 – The metal which can be cut with a knife
(a) Sodium and potassium
(b) Barium and calcium
(c) Sodium and mercury
(d) Potassium and calcium
Ans. (a) Sodium and potassium
Q 61 – Metals are solid except:
(a) Mercury
(b) Gallium
(c) Sodium
(d) Iodine
Ans. (a) Mercury
Q 62 – Brass is an alloy of:
(a) zinc – copper-tin
(b) copper – tin
(c) zinc – copper
(d) zinc – tin
Ans. (c) zinc – copper Non-metals are:
Q 63 – Non-metals are:
(a) generally liquids
(b) generally gases
(c) generally solids and gases
(d) generally gases and liquids
Ans. (c) generally solids and gases
Q 64 – The liquid metal at room temperature is:
(a) Mercury
(b) Bromine
(c) Sodium
(d) Gold
Ans. (a) Mercury
Q 65 – Which of the following dissolves in water to form sulphuric acid?
(a) Sulphur dioxide
(b) Sulphur
(c) Sulphur trioxide
(d) Copper sulphate
Ans. (c) Sulphur trioxide
Q 66 – If metallic Zinc is added to copper sulphate solution :
(a) Zinc displaces copper from solution
(b) no reaction takes place
(c) Sulphur is displaced
(d) Copper displaces Zinc from solution
Ans. (a) Zinc displaces copper from the solution.
Q 67 – Non-metals occur as:
(a) Gas
(b) Solid
(c) Liquid
(d) All of the above
Ans. (d) All of the above
Q 68 – Aluminium foil is used for wrapping food. On which property is it used?
(a) Density
(b) Malleability
(c) Ductility
(d) Strength
Ans. (b) Malleability
Q 69 – Metal oxides are:
(a) basic oxides
(b) acidic oxides
(c) meteoroids
(d) neutral oxides
Ans. (a) basic oxides
Q 70 – Phosphorus combines with oxygen to form oxides. How many types of oxides are formed by it?
(a) One
(b) Two
(c) Three
(d) Four
Ans. (b) Two
Q 71 – All metals are solids except
(a) Sodium
(b) Calcium
(c) Mercury
(d) Hydrogen
Ans. (c) Mercury
Q 72 – The metal which is stored in kerosene:
(a) Phosphorus
(b) Magnesium
(c) Sodium
(d) Zinc
Ans. (c) Sodium
Q 73 – How many electrons are present in non- metals in their outermost shell?
(a) 1, 2 or 3
(b) 8, 9 or 10
(c) 10, 20 or 30
(d) 4, 5, 6 or 7
Ans. (d) 4, 5, 6 or 7
Q 74 – The non-metal which is liquid at room temperature is:
(a) Carbon
(b) Iodine
(c) Bromine
(d) Chlorine
Ans. (c) Bromine
Q 75 – Which non-metal is used in the treatment of rubber during the process of vulcanisation?
(a) Sulphur
(b) Phosphorus
(c) Carbon
(d) Chlorine
Ans. (a) Sulphur
Q 76 – Which of the following compounds is used to make photographic films?
(a) Sodium chloride
(b) Silver bromide
(c) Potassium iodide
(d) Copper chloride
Ans. (b) Silver bromide
Q 77 – Which of the following is called a noble metal?
(a) Mercury
(b) Gold
(c) Lithium
(d) Caesium
Ans. (b) Gold
Q 78 – Metal is hard but _____ can be cut with a knife
(a) iron
(b) potassium
(c) mercury
(d) magnesium
Ans. (b) potassium
Q 79 – How many electrons are generally present in metals in their valence shell?
(a) 1, 2 or 3
(b) 7, 8 or 9
(c) 10, 11 or 12
(d) 20, 30 or 40
Ans. (a) 1, 2 or 3
Q 80 – Calcium disappears into water forming:
(a) Calcium carbonate
(b) transparent water
(c) oxygen gas
(d) milky water
Ans. (d) milky wate
Q 81 – The most reactive metal is:
(a) Iron
(b) Gold
(c) Zinc
(d) Potassium
Ans. (d) Potassium
Q 82 – Rust formation is called:
(a) illusion
(b) aberration
(c) deformation
(d) corrosion
Ans. (d) corrosion
Q 83 – The property by which metals can be beaten into sheets is known as ____.
(a) Ductility
(b) Luster
(c) Sonority
(d) Malleability
Ans. (d) Malleability
Q 84 – Metal oxides react with water to produce:
(a) oxygen gas
(b) all the metal
(c) hydroxides of metal
(d) hydrogenated metal
Ans. (c) hydroxides of metal
Q 85 – Copper is more reactive than:
(a) Magnesium
(b) Iron
(c) Zinc
(d) Silver
Ans. (d) Silver
Q 86 – Which material is used for making crucibles?
(a) Sulphur
(b) Silicon
(c) Graphite
(d) Phosphorus
Ans. (c) Graphite
Q 87 – The metal having the fastest rate of formation of bubbles of hydrogen with dil. HCl is
(a) zinc
(b) copper
(c) magnesium
(d) silver
Ans. (c) magnesium
Magnesium is higher in reactivity series therefore the rate of formation of bubbles of hydrogen with dil HCI is the fastest.
Q 88 – The non-metal which has a very high melting point is:
(a) sulphur
(b) iodine
(c) phosphorus
(d) graphite
Ans. (d) graphite
Graphite is a non-metal having a very high melting point
Q 89 – The non-metal which is a good conductor of electricity is:
(a) sulphur
(b) iodine
(c) phosphorus
(d) graphite
Ans. (d) graphite
Graphite is the only non-metal which is a good conductor of electricity.
Q 90 – The non-metal which is liquid at room temperature is:
(a) chlorine
(b) bromine
(c) iodine
(d) carbon
Ans. (b) bromine
Bromine is a non-metal which is liquid at room temperature.
Q 91 – The colour of chlorine is:
(a) yellow
(b) white
(c) green
(d) yellowish-green
Ans. (d) yellowish-green
The colour of chlorine is yellowish-green.
Q 92 – The metal which cannot be stored in packets is:
(a) sodium
(b) calcium
(c) magnesium
(d) zinc
Ans. (a) sodium
Sodium cannot be stored in packets because it will catch fire.
Q 93 – The metal which is the poorest conductor of heat is:
(a) mercury
(b) zinc
(c) lead
(d) copper
Ans. (c) lead
Lead is the metal which is the poorest conductor of heat.
Q 94 – Property of producing sound by metals is called:
(a) malleability
(b) sonority
(c) ductility
(d) none of these
Ans. (b) sonority
Sonority is the property of producing sound by metals.
Q 95 – The metal which develops a protective layer over its surface by reaction with air is:
(a) zinc
(b) aluminium
(c) iron
(d) silver
Ans. (b) aluminium
Aluminium metal develops a protective layer of aluminium oxide over its surface by reaction with air.
Q 96 – The metal not corroded by air, water and acid is :
(a) copper
(c) gold
(b) zinc
(d) aluminium
Ans. (c) gold
Gold metal is not corroded by air, water and acid because one of the least reactive metals reactivity series.
Q 97 – The metal which is soft is:
(a) sodium
(c) silver
(b) gold
(d) copper
Ans. (a) sodium
Sodium metal is soft whereas gold, silver and copper are solids.
Q 98 – The correct statement is:
(a) all metals are ductile
(c) generally, metals are ductile
(b) all non-metals are ductile
(d) some non-metals are ductile
Ans. (c) generally, metals are ductile
Generally, metals are ductile. Sodium, potassium, calcium etc. are not ductile.
Q 99 – When copper is added to iron sulphate solution:
(a) iron is displaced
(b) S04 is displaced
(c) no reaction takes place
(d) non of these
Ans. (c) no reaction takes place
When copper is added to iron sulphate solution then no reaction takes place because copper is below iron in the reactivity series.
Q 100 – Arrange the following in the order of their decreasing chemical activity: magnesium,
potassium, iron and gold.
(a) magnesium, potassium, iron, gold
(b) magnesium, iron, potassium, gold
(c) potassium, magnesium, iron, gold
(d) none of these
Ans. (c) potassium, magnesium, iron, gold
Potassium, magnesium, iron, gold.
Q 101 – Which of the following is true about metals:
(a) metals generally have a low melting point
(b) metal generally has a shiny appearance
(c) metals are poor conductors of heat and electricity
(d) metals are non-malleable and non-ductiles
Ans. (b) metal generally have a shiny appearance
Metals generally have a shiny appearance. They have a high melting points, are good conductors of heat and electricity. They are malleable and ductile.
Q 102 – Which one of the following is most ductile:
(a) Aluminium
(b) Copper
(c) Silver
(d) Gold
Ans. (d) Gold
Gold is most ductile
Q 103 – Which one of the following metals is most reactiVe and stored in kerosene oil:
(a) Iron
(b) Gold
(c) Copper
(d) Sodium
Ans. (d) Sodium
Sodium is most reactive and stored in kerosene oil. Sodium reacts with air and water at room temperature.
Q 104 – Which one of the following metals will not liberate hydrogen gas when attacked by dilute
hydrochloric acid:
(a) magnesium
(b) zinc
(c) copper
(d) aluminium
Ans. (c) copper
Copper will not liberate hydrogen gas when attacked by dilute hydrochloric acid because it is very low in reactivity series
Q 105 – For rusting of iron:
(a) only moisture is required
(b) only air is required
(c) both moisture and air is required
(d) neither moisture nor air is required
Ans. (c) both moisture and air is required
Both moisture and air are required for rusting of iron.
Q 106 – The property of metals by virtue of which metal can be hammered into very thin sheets is
called:
(a) ductility
(b) malleability
(c) lustre
(d) sonorusb
Ans. (b) malleability
Malleability is the property of metals by virtue of which metals can be hammered into very thin sheets.
Q 107 – Non-metals react with oxygen and form:
(a) natural oxides
(b) acidic oxides
(c) basic oxides
(d) none of these
Ans. (b) acidic oxides
Non-metals react with oxygen and forms non-metallic oxides which are acidic in nature.
Q 108 – Metals react with oxygen to form:
(a) basic oxides
(c) acidic oxides
(b) neutral oxides
(d) none of these
Ans. (c) acidic oxides
Metals react with oxygen and form metallic oxides which are Basic in nature.
Q 109 – Metals can form long wires. This property of metals is known as:
(a) sonorous
(c) malleability
(b) ductility
(d) none of these
Ans. (b) ductility
Ductility is the property of metal to form long wires.
Q 110 – The best electrical conductor is:
(a) gold
(b) silver
(c) copper
(d) aluminium
Ans. (b) silver
Silver is the best conductor of electricity.
Q 111 – Which of the following can be beaten into thin sheets ?
(a) oxygen
(b) carbon
(c) aluminium
(d) phosphorus
Ans. (c) aluminium
Aluminium can be beaten into thin sheets because it is metal whereas oxygen, carbon and phosphorus are non-metals.
Q 112 – The metal which reacts violently with cold water is:
(a) zinc
(b) aluminium
(c) sodium
(d) copper
Ans. (c) sodium
Sodium reacts violently with cold water because it is high in the reactivity series.
Q 113 – Match the Following:
| Column I | Column II |
| 1. Malleable | (c) Give sheets on hammering |
| 2. Ductile | (a) Can be transformed into wire |
| 3. Oxygen | (e) All living beings inhale during breathing |
| 4. Copper | (f) For making electric wires |
| 5. Sulphur | (b) For making crackers |
| 6. Diamond | (h) Hardest non-metal |
| 7. Sonority | (i) Ringing of bells |
| 8. Iron | (g) For making rails |
| 9. Chlorine | (d) For disinfecting water |
| 10. Platinum | (j) Used in making ornaments |
Ans.
| Column A | Column B |
| 1. Metallic oxide | c. Basic in nature |
| 2. Sodium | d. Kept in kerosene |
| 3. A liquid non-metal | e. Bromine |
| 4. Chlorine | b. Non-metal |
| 5. Basic solution | a. Turns red litmus into blue |