Q 1 – Metals has shown below the property.
(a) Brittleness
(b) Electricity non-conductance
(c) Malleable
(d) Soft
Q 2 – Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?
(i) Good thermal conductivity
(ii) Good electrical conductivity
(iii) Ductility
(iv) High melting point
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iii)
(d) (i) and (iv)
Q 3 – The ability of metals to be drawn into thin wires is called…………
(a) Ductility
(b) Malleability
(c) Sonorous
(d) Conductance
Q 4 – The poorest conductor of heat among metals is
(a) Lead
(b) Mercury
(c) Calcium
(d) Sodium
Q 5 – …………….. among these metals are poor conductors of heat.
(a) Lead and aluminium
(b) Mercury and steel
(c) Lead and mercury
(d) Iron and aluminium
Q 6 – Which property of metals is used for making bells and strings of musical instruments like Sitar and Violin?
(a) Sonorousness
(b) Malleability
(c) Ductility
(d) Conductivity
Q 7 – Gallium and ………………. Have very low melting point.
(a) Aluminium
(b) Sodium
(c) Mercury
(d) Caesium
Q 8 – Which of the following is the correct arrangement of the given metals in ascending order of their reactivity?
Zinc, Iron, Magnesium, Sodium
(a) Zinc > Iron > Magnesium > Sodium
(b) Sodium > Magnesium > Iron > Zinc
(c) Sodium > Zinc > Magnesium > Iron
(d) Sodium > Magnesium > Zinc > Iron
Q 9 – carbon exist in different forms called …………..
(a) allotrope
(b) isomers
(c) carbon compounds
(d) carbon examples
Q 10 – Which of the following pairs will give displacement reactions?
(a) FeSO4 solution and Copper metal
(b) AgNO3 solution and copper metal
(c) CuSO4 solution and Silver metal
(d) NaCl solution and copper metal
Q 11 – It is allotrope of carbon which conducting electricity.
(a) Graphite
(b) Diamond
(c) Carbon compounds
(d) Carbohydrates
Q 12 – ………….. alkali metal is soft in nature.
(a) Aluminium
(b) Iodine
(c) Iron
(d) Sodium
Q 13 – Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible
for the same?
(i) Good thermal conductivity
(ii) Good electrical conductivity
(iii) Ductility
(iv) High melting point
(a) (i) and (ii)
(b) (iii) and (iv)
(c) (ii) and (iii)
(d) (i) and (iv)
Q 14 – When nonmetals dissolves in water.
(a) Produces acidic oxides
(b) Produces basic oxide
(c) Produces salt
(d) Produces gas
Q 15 – The composition of aqua-regia is
(a) Dil.HCl : Conc. HNO3 = 3 : 1
(b) Conc.HCl : Dil. HNO3 = 3 : 1
(c) Conc.HCl : Conc. HNO3 = 3 : 1
(d) Dil.HCl : Dil. HNO3 = 3 : 1
Q 16 – Magnesium burns in air with ……………
(a) Dazzling black flame
(b) Sooty flame
(c) Dazzling white flame
(d) Non-sooty flame
Q 17 – Which of the following oxide(s) of iron would be obtained on prolonged reaction of iron with steam?
(a) FeO
(b) Fe2O3
(c) Fe3O4
(d) Fe2O3 and Fe2O4
Q 18 – Metal + oxygen –> _________
(a) Metal oxide
(b) Metal ash
(c) Metal carbonate
(d) Metal hydride
Q 19 – Which one of the following properties is not generally exhibited by ionic compounds?
(a) Solubility in water
(b) Electrical conductivity in solid-state
Q 20 – Formula of aluminium oxide.
(a) Al2O2
(b) Al2O3
(c) AlO
(d) AlO6
Q 21 – Which of tire following are not ionic compounds?
(i) KCl
(ii) HCl
(iii) CCl4
(iv) NaCl
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iii)
Q 22 – Name of NaAlO2
(a) Sodium oxide
(b) Sodium aluminium dioxide
(c) Sodium aluminate
(d) Sodium dialuminate
Q 23 – Which of the following metals exist in their native state in nature?
(i) Cu
(ii) Au
(iii) Zn
(iv) Ag
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (ii) and (iv)
(d) (iii) and (iv)
Q 24 – Metal + water –> ……………. + ……………..
(a) Metal oxide, oxygen
(b) Metal oxide, hydrogen
(c) Metal oxide, carbon dioxide
(d) Metal oxide, water
Q 25 – The electronic configuration of three elements X, Y and Z are as follows: X = 2, 4, Y = 2, 7, Z = 2,1 Which two elements will combine to form an ionic compound and write the correct formula,
(a) X2Y
(b) YZ
(c) XZ3
(d) Y2Z
Q 26 – Ca + 2H2O –> ……………. + H2
(a) Ca(OH)2
(b) CaO
(c) Ca2
(d) CaH2
Q 27 – Stainless steel is very useful material for our life. In stainless steel, iron is mixed with
(a) Ni and Cr
(b) Cu and Cr
(c) Ni and Cu
(d) Cu and Ni
Q 28 – HNO3………………….
(a) Strong oxidizing agent
(b) Strong reducing agent
(c) Strong ellinating agent
(d) Weak acid
Q 29 – Choose the incorrect sentence
(a) Sodium atoms has one electron in its outermost shell.
(b) Potassium is more reactive than gold
(c) Iron to gold reactivity decreases
(d) Sodium ions carry a negative charge
Q 30 – Which of the following non-metal is lustrous?
(a) Sulphur
(b) Oxygen
(c) Nitrogen
(d) Iodine
Q 31 – Which one among the following is an acidic oxide?
(a) Na2O
(b) CO
(c) CO2
(d) Al2O3
Q 32 – Electronic configuration of calcium
(a) 2,8,8,1
(b) 2,8,8,3
(c) 2,8,8,2
(d) 2,8,8
Q 33 – Generally, non-metals are not lustrous. Which of the following nonmetal is lustrous?
(a) Sulphur
(b) Oxygen
(c) Nitrogen
(d) Iodine
Q 34 – Cl – ion configuration.
(a) 2 8 8
(b) 2 8 9
(c) 2 8 7
(d) 2 8 3
Q 35 – MgCl2 Name the cation present in this compound.
(a) Mg
(b) Cl2
(c) Cl
(d) Cl –
Q 36 – Ionic compound does not shows following property.
(a) Physical nature
(b) Conductivity
(c) Solubility
(d) Conduction of electricity
Q 37 – Oxides of moderately reactive metals like Zinc, Iron, Nickel, Tin, Copper etc. are
reduced by using
(a) Aluminium as reducing agent
(b) Sodium as a reducing agent
(c) Carbon as reducing agent
(d) Calcium as reducing agent
Q 38 – Metals can be profitably extracted from minerals called…….
(a) Gangue
(b) Ores
(c) Metallurgy
(d) Gas
Q 39 – Galvanisation is a method of protecting iron from rudftng by coating with a thin layer of
(a) Galium
(b) Aluminium
(c) Zinc
(d) Silver
Q 40 – Metals of medium reactivity shows below methods of ore extraction.
(a) Roasting and calcination process
(b) Refining
(c) Oxidation
(d) Reduction
Q 41 – The electronic configurations of three elements X, Y and Z are X — 2, 8; Y — 2, 8, 7 and Z — 2, 8, 2. Which of the following is correct?
(a) X is a metal
(b) Y is a metal
(c) Z is a non-metal
(d) Y is a non-metal and Z is a metal
Q 42 – Cinnabar is the ore of………………..
(a) Lead
(b) Aluminium
(c) Potassium
(d) Mercury
Q 43 – Copper objects lose their shine and form a green coating of
(a) Copper oxide
(b) Copper hydroxide and Copper oxide
(c) Basic Copper carbonate
(d) Copper carbonate
Q 44 – HgS + O2 –> HgO + ……………….
(a) Oxygen
(b) Water
(c) Sulphur dioxide
(d) Hydrogen
Q 45 – An electrolytic cell consists of
(i) positively charged cathode
(ii) negatively charged anode
(iii) positively charged anode
(iv) negatively charged cathode
(a) (i) and (ii)
(b) (iii) and (iv)
(c) (i) and (iii)
(d) (ii) ad (iv)
Q 46 – ZnCO3 + heat —> ……………… + CO2
(a) ZnO
(b) ZnC
(c) Zn
(c) ZnCO2
Q 47 – Which of the statements about the reaction,
ZnO + CO → Zn + CO2 is correct ?
(a) ZnO is being oxidised
(b) CO is being reduced
(c) CO2 is being oxidised
(d) ZnO is being reduced
Q 48 – 3MnO2 + 4Al —> 3Mn + …………….+ heat
(a) Al2O2
(b) Al2O3
(c) AlO
(d) AlO6
Q 49 – In extraction of copper, the flux used is
(a) CaO
(b) SiO2
(c) FeO
(d) FeSiO3
Q 50 – Iron (III) Oxide( Fe2O3) reacts with aluminium reaction known as…..
(a) Exothermic reaction
(b) Endothermic reaction
(c) Thermit reaction
(d) Fast reaction
Q 51 – Cu2S + 3Cu2O → 6Cu + SO2 The above process is
(a) auto-reduction
(b) chemical reduction
(c) electrolytic reduction
(d) None of these
Q 52 – During electrolytic refining of zinc, it gets
(a) deposited on cathode
(b) deposited on anode
(c) deposited on cathode as well as anode
(d) remains in the solution
Q 53 – When insoluble impurities settle down at the bottom of anod are known as…………
(a) Dust
(b) Cathode sand
(c) Anod mud
(d) Anod ash
Q 54 – Which of the following represent mercury (I) ion correctly ?
(a) Hg+
(b) Hg2+
(c) Hg22+
(d) Hg
Q 55 – When iron is mixed with nickel and chromium we get….
(a) Bronze
(b) Gold
(c) Steel
(d) Aluminium
Q 56 – Bauxite is mixed with cryolite so as to
(i) reduce its melting point
(ii) increase its electrical conductivity
(iii) molten cryolite acts as solvent
(iv) increase its melting point
(a) (i), (ii) and (iii)
(b) (ii), (iii) and (iv)
(c) (iii) and (iv)
(d) (i) and (i)
Q 57 – Which among the following alloys contain mercury as one of its constituents?
(a) Stainless steel
(b) Alnico
(c) Solder
(d) Zinc amalgam
Q 58 – Which of the following can undergo a chemical reaction?
(a) MgSO4 + Fe
(b) ZnSO4 + Fe
(c) MgSO4 + Pb
(d) CuSO4 + Fe
Q 59 – Electrical wires have a coating of an insulating material. The material, generally used is
(a) Sulphur
(b) Graphite
(c) PVC
(d) All can be used
Q 60 – An element ‘X’ is yellow coloured solid, insoluble in water but soluble in carbon disulphide. It has low melting point of 114.5°C. It boils at 445°C and it bums with pale blue flame forming pungent-smelling gas ‘Y’ which turns moist blue litmus red and finally colourless. ‘X’ and ‘Y’ are
(a) C, CO2
(b) N, NO2
(c) S, SO2
(d) I2, I2O5
Q 61 – Which of the following ore is concentrated by the Froth floatation process?
(a) ZnCO3
(b) ZnO
(c) ZnS
(d) Na2S
Q 62 – Which of the following metals liberate hydrogen with 5% HNO3 ?
(i) Cu
(ii) Zn
(iii) Mn
(iv) Mg
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iv)
Q 63 – Which one of the following metals do not react with cold as well as hot water?
(a) Na
(b) Ca
(c) Mg
(d) Fe
Q 64 – Generally metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals (except Mn and Mg) ?
(a) H2SO4
(b) HCl
(c) HNO3
(d) All of these
Q 65 – Which of the following metals exist in their native state in nature ?
(i) Cu
(ii) Au
(iii) Zn
(iv) Ag
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (ii) and (iv)
(d) (iii) and (iv)
Q 66 – Generally, metals are solid in nature. Which one of the following metals is found in a liquid state at room temperature?
(a) Na
(b) Fe
(c) Cr
(d) Hg
Q 67. The correct decreasing order of the metals in the activity series is:
(a) Ca, Mg, Ni, Fe
(b) Ni, Ca, Mg, Fe
(c) Ca, Mg, Fe, Ni
(d) Mg, Ca, Fe, Ni
Q 68 – An element A is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in the air. It reacts vigorously with water. Identify the element from the following.
(a) Mg
(b) Na
(c) P
(d) Ca
Q 69 – Alloys are homogeneous mixtures of a metal with a metal or non-metal. Which among the following alloys contain non-metal as one of its constituents?
(a) Brass
(b) Bronze
(c) Amalgam
(d) Steel
Q 70 – Reaction between X and Y, forms compound Z. X loses electron and Y gains electron. Which of the following properties is not shown by Z?
(a) Has a high melting point
(b) Has a low melting point
(c) Conducts electricity in a molten state
(d) Occurs as solid
In the following Questions, the Assertion and Reason have been put forward. Read the statements carefully and choose the correct alternative from the following:
(a) Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.
(b) The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.
(c) Assertion is true but the Reason is false.
(d) The statement of the Assertion is false but the Reason is true.
Q 71 – Assertion: Al2O3, is an amphoteric oxide.
Reason: Al2O3 reacts with acid as well as base to form salt and water.
Q 72 – Assertion: Nitrogen is a non-metal.
Reason: Nitrogen has 5 valence electrons.
Q 73 – Assertion: Copper does not react with the H2SO4.
Reason: Copper is more reactive than hydrogen.
Q 74 – Assertion: Highly reactive metals are obtained by electrolytic reduction of their molten ore.
Reason: Highly reactive metals can be extracted by chemical reduction.
Q 75 – Assertion: Silver becomes black in colour when exposed to the atmosphere.
Reason: Silver reacts with H^S gas to form Ag, S which is black in colour.
Q 76. Assertion (A): Highly reactive metals are obtained by electrolytic reduction.
Reason (R): In the electrolytic reduction, metal is deposited at the cathode
Q 77. Assertion (A): Zinc oxide is amphoteric in nature.
Reason (R): Zinc oxide reacts with both acids and bases.
Q 78. Assertion (A): Zinc becomes dull in moist air.
Reason (R): Zinc is coated by a thin film of its basic carbonate in moist air.
Q 79. Assertion (A): Anodising is a method to prevent metal from corrosion.
Reason (R): Anodising is a process of coating iron with a layer of zinc.
Q 80. Assertion: Copper displaces silver from silver nitrate solution.
Reason: Copper is more reactive than silver.
Q 81. Assertion: Different metals have different reactivities with water and dilute acids.
Reason: The reactivity of a metal depends on its position in the reactivity series.
Q 82 Assertion: Silver and gold do not react with oxygen even at high temperatures.
Reason: Silver and gold are less active metals.
Q 83. Assertion: The oxides of sulphur and phosphorus are acidic in nature.
Reason: Metal oxides are basic in nature.
Q 84. Assertion: Magnesium reacts with oxygen upon heating and burns brightly to form magnesium oxide.
Reason: Magnesium oxide is basic in nature.
Q 85. Assertion: Bromine cannot displace chlorine from its salt solution.
Reason: Chlorine is more reactive than bromine.
Q 86. Chemically rust is
(a) Hydrated ferrous oxide
(b) Hydrated ferric oxide
(c) only ferric oxide
(d) none of these
Q 87. The setting of Plaster of Paris takes place due to
(a) Solder
(b) Bronze
(c) Brass
(d) Bell metal
Q 88. Heating pyrites to remove sulphur is called
(a) Smelting
(b) Calcination
(c) Liquation
(d) Roasting
Q 89. The atomic number of an element ‘X’ is 12. Which inert gas is nearest to X?
(a) He
(b) Ar
(c) Ne
(d) Kr
Q 90. An element X is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in air. It reacts vigorously with water. Identify the element from the following
(a) Mg
(b) Na
(c) P
(d) Ca
Q 91. Metal always found in free state is:
(a) Gold
(b) Silver
(c) Copper
(d) Sodium
Q 92. A mineral is known as ore if metal
(a) Cannot be produced from it
(b) Can be produced from it
(c) Can be extracted from it profitably
(d) Is very costly
Q 93. Non-metals form covalent chlorides because
(a) they can give electrons to chlorine
(b) they can share electrons with chlorine
(c) they can give electrons to chlorine atoms to form chloride ions
(d) they cannot share electrons with chlorine atoms
Q 94. The highly reactive metals like Sodium, Potassium, Magnesium, etc. are extracted by the
(a) electrolysis of their molten chloride
(b) electrolysis of their molten oxides
(c) reduction by aluminium
(d) reduction by carbon
Q 95. An iron nail was suspended in CuSO4 solution and kept for a while the solution is
(a) Remained blue and coating was found on the nail.
(b) turned green and a coating was formed on the nail
(c) remained blue and no coating was formed on the nail
(d) turned green and no coating was formed on the nail
Q 96. The sulphide ore among the following is
(a) haematite
(b) bauxite
(c) argentite
(d) zinc blende
Q 97. Oxides of moderately reactive metals like Zinc, Iron, Nickel, Tin, Copper etc. are reduced by using
(a) Aluminium as reducing agent
(b) Sodium as a reducing agent
(c) Carbon as reducing agent
(d) Calcium as reducing agent
Q 98. Some crystals of CuSO4 were dissolved in water. The color of the solution obtained would be
(a) Green
(b) Red
(c) Blue
(d) Brown
Q 99. In thermite welding, a mixture of …… and …… is ignited with a burning magnesium ribbon which produces molten iron metal as a large amount of heat is evolved.
(a) iron (III) oxide and aluminium powder
(b) iron (II) oxide and aluminium powder
(c) iron (III) chloride and aluminium powder
(d) iron (III) sulphate and aluminium powder
Q 100. Zone refining is used for the
(a) the concentration of an ore
(b) Reduction of metal oxide
(c) Purification of metal
(d) Purification of an ore
Q 101. In the thermite process, the reducing agent is
(a) Nickel
(b) Zinc
(c) Sodium
(d) Aluminium
Q 102. A student adds one big iron nail each in four test tubes containing a solution of zinc sulphate, aluminium sulphate, copper sulphate and iron sulphate. A reddish-brown coating was observed only on the surface of the iron nail which was added in the solution of:
(a) Zinc sulphate
(b) Iron sulphate
(c) copper sulphate
(d) Aluminium Sulphate
Q 103. The most abundant metal in the earth’s crust is
(a) Iron
(b) Aluminium
(c) Calcium
(d) Sodium