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- 1. Multiple Choice
Metals can be beaten into thin sheets.Which property does it show?
ductility
lustre
malleabilty
conductivity
- 2. Multiple Choice
Almost all metals are very hard and non-metals are not very hard.Which following pair is an exception to this statement?
sodium and sulphur
potassium and carbon
sodium and diamond
iron and phosphorous
- 3. Multiple Choice
Magnesium ribbon burns to produce MgO and this oxide further reacts with water to give rise to Mg (OH)2, which changes red litmus to blue one.What is the nature of this compound?
Acidic
Basic
both acidic and basic
none of these
- 4. Multiple Choice
Which of the following metals are more active with water ?
Magnesium and Iron
Aluminium and Copper
Sodium and Potassium
Mercury and Zinc
- 5. Multiple Choice
In a reaction one element removes the less reactive element from a compound and it forms its respective salt.Which chemical reaction is this?
Neutralization reaction
displacement reaction
Both neutralization and displacement reaction
none of these
- 6. Multiple Choice
What will happen when we add Iron nails in copper sulphate solution .Choose the correct option
CuSO4 + Fe -----> FeSO4 + CuSO4
CuSO4 + I ------> ISO4 + Cu
CuSO4 + Fe ------> FeSO4 + Cu
All of the above
- 7. Multiple Choice
Arrange the metals copper, zinc and iron in their increasing order of their reactivity.
copper,iron,zinc
iron,copper,zinc
copper,zinc,iron
iron,zinc,copper
- 8. Multiple Choice
A substance is said to be sonorous if it _________.
conducts heat
conducts electricity
conducts water through metal pipe
produces a ringing sound when beaten
- 9. Multiple Choice
Pick the odd one from the following elements.
Carbon
Platinum
Potassium
Gold
- 10. Multiple Choice
What is the property that makes metals shine called?
Malleability
Ductility
Sonorous
Lustre
- 11. Multiple Choice
Sodium metal is dipped in which of the following substances for storage?
petrol
kerosene
sulphuric acid
vaseline
- 12. Multiple Choice
Materials around us can be classified into
Metals and non-metals
Acids and bases
Elements and compounds
None of these.
- 13. Multiple Choice
All metals are solids except
Sodium
Calcium
Mercury
Hydrogen
- 14. Multiple Choice
When non-metals react with water then
Hydrogen gas is formed
Carbon dioxide gas is formed
Non-metals do not react with water
None of these.
- 15. Multiple Choice
Which of the following metals catch fire on reaction with air?
Magnesium
Manganese
Potassium
Calcium
- 16. Multiple Choice
Metals like zinc and aluminium react with sodium hydroxide to produce ____ gas.
hydrogen
oxygen
hydrogen sulphide
sulphur dioxide
- 17. Multiple Choice
Metal + Acid = ___ + Hydrogen
Sodium Chloride
Magnesium Sulphate
Salt
Iron Chloride
- 18. Multiple Choice
_____ is used in making of matchsticks, matchboxes and fireworks.
Carbon
Nitrogen
Phosphorous
Sulphur
- 19. Multiple Choice
Which of the following metals does not react even with steam ?
Silver
Iron
Calcium
Sodium
- 20. Multiple Choice
When sulphur reacts with oxygen, the oxide formed is ___ in nature.
alkaline
neutral
basic
acidic
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