Metals and Non Metals For Class 8 Science MCQ Test Paper

Q 1 – Which of the following is a liquid at room temperature?
(a) Iron
(b) Bromine
(c) Iodine
(d) Phosphorus

Q 2 – The most reactive metal is
(a) copper
(b) silver
(c) potassium
(d) calcium

Q 3 – The metal which is liquid at room temperature is
(a) sodium
(b) bromine
(c) calcium
(d) mercury

Q 4 – Which one of the following metals is the most ductile?
(a) Aluminium
(b) Copper
(c) Silver
(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

Q 6 – Name the gas evolved when magnesium reacts with dilute hydrochloric acid 
(a) Chlorine
(b) Oxygen
(c) hydrogen
(d) Nitrogen

Q 7 – The metal which is not corroded by air, water and acid is    
(a) Copper
(b) Zinc
(c) Aluminium
(d) Gold

Q 8 – Metals are
(a) Soft and Brittle
(b) Hard and Solid
(c) Liquid
(d) Generally liquid

Q 9 – Materials having qualities of both metals and non-metals are      
(a) alloys
(b) metalloids
(c) noble metals
(d) none of these

Q 10 – Which metal reacts readily with cold water?
(a) Gold
(b) Silver
(c) Magnesium
(d) Calcium

Q 11 – The best electrical conductor is   
(a) Gold
(b) Copper
(c) Silver
(d) Aluminium

Q 12 – A mineral from which. a metal can be extracted on the commercial scale, economically is called
(a) ore
(b) metalloid
(e) corrosion
(d) metal

Q 13 – Out of these, which one is more reactive with water?
(a) Sodium
(b) Magnesium
(c) Iron
(d) Copper

Q 14 – Iron is galvanised by coating it with
(a) Chromium
(b) Sodium
(c) Magnesium
(d) Zinc

Q 15 – Boron is
(a) metal
(b) metalloid
(c) non-metal
(d) alkali

Q 16 – Metal oxides are :
(a) basic oxides
(b) acidic oxides
(c) meteoroids
(d) neutral oxides

Q 17 – To which category do antimony and arsenic belong?
(a) Metals
(b) Metalloids
(c) Non-metals
(d) Minerals

Q 18 – Metals are solid except:     
(a) Mercury
(b) Gallium
(c) Sodium
(d) Iodine

Q 19 – The metal having fastest rate of formation of bubbles of hydrogen with dil. HCl is
(a) Zinc
(b) Copper
(c) Magnesium
(d) Silver

Q 20 – The non-metal which has very high melting point is:
(a) Sulphur
(b) Iodine
(c) Phosphorus
(d) Graphite

Q 21 – The non-metal which is good conductor of electricity is:   
(a) Sulphur
(b) Iodine
(c) Phosphorus
(d) Graphite

Q 22 – The non-metal which is liquid at room temperature is:      
(a) Chlorine
(b) Bromine
(c) Iodine
(d) Carbon

Q 23 – The colour of chlorine is:    
(a) Yellow
(b) White
(c) Green
(d) Yellowish green

Q 24 – The metal which cannot be stored in packets is:
(a) Sodium
(b) Calcium
(c) Magnesium
(d) Zinc

Q 25 – The metal which is poorest conductor of heat is:
(a) Mercury
(b) Zinc
(c) Lead
(d) Copper

Q 26 – Property of producing sound by metals is called:
(a) malleability
(b) sonority
(c) ductility
(d) none of these

Q 27 – The metal which develops a protective layer over its surface by reaction with air is:
(a) Zinc
(b) Aluminium
(c) Iron
(d) Silver

Q 28 – The metal not corroded by air, water and acid is :
(a) Copper
(c) Gold
(b) Zinc
(d) Aluminium

Q 29 – The metal which is soft is: 
(a) Sodium
(c) Silver
(b) Gold
(d) Copper

Q 30 – The correct statement is:
(a) all metals are ductile
(b) generally, metals are ductile
(c) all non-metals are ductile
(d) some non-metals are ductile

Q 31 – When copper is added to iron Sulphate solution:
(a) Iron is displaced
(b) (S04)2 ions are displaced
(c) No reaction takes place
(d) None of these

Q 32 – 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

Q 33 – Which of the following is true about metals:
(a) metals generally have low melting point
(b) metal generally have a shiny appearance
(c) metals are poor conductors of heat and electricity
(d) metals are non-malleable and non-ductiles

Q 34 – Which one of the following is most ductile:
(a) Aluminium
(b) Copper
(c) Silver
(d) Gold

Q 35 – Which one of the following metals is most reactive and stored in kerosene oil:
(a) Iron
(b) Gold
(c) Copper
(d) Sodium

Q 36 – 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

Q 37 – 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

Q 38 – 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) sonorous

Q 39 – Non-metals react with oxygen and form:
(a) natural oxides
(b) acidic oxides
(c) basic oxides
(d) none of these

Q 40 – Metals react with oxygen to form:         
(a) basic oxides
(b) acidic oxides
(c) neutral oxides
(d) none of these

Q 41 – Metals can form long wires. This property of metals is known as:
(a) sonorous
(b) malleability
(c) ductility
(d) none of these

Q 42 – The best electrical conductor is:
(a) Gold
(b) Silver
(c) Copper
(d) Aluminium

Q 43 – Which of the following can be beaten into thin sheets ?
(a) Oxygen
(b) Carbon
(c) Aluminium
(d) Phosphorus

Q 44 – The metal which reacts violently with cold water is:
(a) Zinc
(b) Aluminium
(c) Sodium
(d) Copper

Q 45 – A liquid metal is:       
(a) Bromine
(b) Iodine
(c) Nitrogen
(d) Mercury

Q 46 – The gas produced when metals react with sodium hydroxide is:
(a) Nitrogen
(b) Oxygen
(c) Hydrogen
(d) Water vapour

Q 47 – The gas produced when metals reacts with dilute acids is:           
(a) Nitrogen
(b) Carbon dioxide
(c) Oxygen
(d) Hydrogen

Q 48 – Sulphur reacts with hot concentrated nitric acid and produces:
(a) Sulphur dioxide
(b) Sulphur trioxide
(c) Nitrogen dioxide
(d) Sulphur dioxide and Nitrogen dioxide