4.4 MULTIPLE CHOICE QUESTIONS :(MCQ’s)
1. Metals produce a ringing sound when struck hard.
a) Sonorous b) Ductility c) Rigidity d) Malleability
2. The process of metal reacts with oxygen to form basic oxides.
a) Reduction b) Reaction c) Oxidisation d) Neutralisation
3. __________ burns with a ‘pop’sound, when a burning matchstick is brought near it.
a) Hydrogen b) Oxygen c) Nitrogen d) Ethane
4. An ___________ is a solid mixture of two or more metals or a metal and a non-metal.
a) Combination b) Alloy c) Solder d) Acid
5. ___________ is essential for our bones and teeth.
a) Magnesium b) Sodium c) Phosphorus d) Potassium
6. The metal which is stored in kerosene:
a) Sodium b) Potassium c) Iodine d) Magnesium
7. The non-metal which is liquid at room temperature is:
a) Iodine b) Bromine c) Flourine d) Calcium
8. The nature of metal oxides is __________
a) Basic b) Acidic c) Neutral d) Oxidised
9. The metals allow the electricity to pass through them is called _________.
a) Conductivity b) Insulators c) Conductors d) Metalloids
10. The ________ is chemically known as Iron oxide.
a) Oxides b) Rust c) Dust d) Green coating
11. Name the product formed by the reaction of sulphur and oxygen.
a) Sulphur dioxide gas b) Sulphur tri-oxide gas c) Sulphuric acid d) Sulphurous acid
12. Write the names of two most malleable metals.
a) Lead and tin b) Iron and lead c) Silver and tungsten d) Gold and silver
13. When a magnesium ribbon is heated in presence of air white powder is formed which is called _____________.
a) Talc b) Iron oxide c) Magnesium oxide d) Magnesium hydroxide
14. Metals give ___________ when they react with acids.
a) Oxygen b) Hydrogen c) Carbon d) Nitrogen
15. The oxides produced by the reaction of non-metal with oxygen are ________ in nature.
a) Acidic b) Basic c) Neutral d) None of these
Answers :
1. a) 2. c) 3. a) 4. b) 5. c) 6. a) 7. b) 8. a)
9. a) 10. b) 11. a) 12. d) 13. c) 14. b) 15. a) .