Galvanizing Fossil Fule & Chemical formula

Total Questions: 18

1 - The process of applying zinc coating to iron is called------?
A ) Galvanizing
B ) Smelting ✅
C ) Sweltering
D ) None of these

2 - What is the main purpose of galvanizing metal?

A ) To prevent rusting ✅
B ) To improve appearance
C ) To increase strength
D ) To make it more flexible

3 - Which of the following is easily recycled after being buried in soil?

A ) Glass
B ) Plastic ✅
C ) Metal
D ) Paper

4 - Which type of energy store in coal?

A ) Heat
B ) Chemical ✅
C ) Kinetic
D ) Nuclear

5 - Which of the following is not considered a fossil fuel?

A ) Solar energy ✅
B ) Coal
C ) Oil
D ) Natural gas

6 - What process is used to convert coal into a usable form of energy?

A ) Photosynthesis
B ) Anthracite
C ) Combustion ✅
D ) Fractional distillation

7 - Which type of coal is used on a mega scale?

A ) Bituminous ✅
B ) Lignite
C ) Anthracite
D ) Sub bituminous

8 - The salt form of coal used in power generation is--------:
A ) Lignite ✅
B ) Anthracite
C ) Bituminous
D ) Peat

9 - Hard form of coal which majorly used in industries------:
A ) Anthracite ✅
B ) Bituminous
C ) Peat
D ) Lignite

10 - Cock Contains 98% of carbon which is residue of-----?

A ) Coal ✅
B ) Gas
C ) Disel
D ) Petrol

11 - Which fossil fuel is considered the cleanest burning?

A ) Natural gas ✅
B ) Coal
C ) Oil
D ) Peat

12 - Fossil fuels are formed primarily from the remains of what?

A ) Animals
B ) Plants
C ) Microorganism
D ) All of these ✅

13 - Which of the following is a by-product of burning fossil fuel?

A ) Carbon dioxide ✅
B ) Hydrogen
C ) Nitrogen
D ) Oxygen

14 - What percentage of water is in carbonated drinks?

A ) 50%
B ) 60%
C ) 70%
D ) 92% ✅
Explanation:

Carbonated drinks contain approximately 90% or more water — typically between 90% to 99%.

 📘 Explanation:

Carbonated drinks are mostly made of water, with the rest being:

  • ✅Carbon dioxide (gas)
  • ✅ Flavors
  • ✅ Sweeteners
  • ✅ Additives

15 - Diamond is an allotropy form of which element?

A ) Silicon
B ) Carbon ✅
C ) Germanium
D ) None of these

16 - Baking soda is also known as----:
A ) Sodium bicarbonate ✅
B ) Sodium carbonate
C ) Soda Ash
D ) Caustic soda

17 - What is the chemical name of bleaching powder?

A ) Calcium chlorate
B ) Calcium chloride
C ) Calcium hydrochlorite ✅
D ) Chlorine

18 - Bleaching powder contains------:
A ) Chlorine ✅
B ) Bromine
C ) Iodine
D ) Nitrogen
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