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

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

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

4 - Which type of energy store in coal?

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

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

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

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

A ) Electrolysis
B ) Photosynthesis
C ) Combustion ✅
D ) Fractional distillationFractional distillation

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

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

8 - The soft 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 ) Lignite
C ) Bituminous
D ) Peat

10 - Folk 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 ) Coal
B ) Natural gas ✅
C ) Peat
D ) Oil

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

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

13 - Which of the following is a By-product of burning fossil fuels?

A ) Nitrogen
B ) Carbon dioxide ✅
C ) Hydrogen
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 allotropic form of which element?

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

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

17 - What is the chemical name of bleaching powder?

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

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