Question Detail

What is a mixture of potassium nitrate powdered charcoal and sulphur called?

paint
aluminium
brass
gun powder

Answer: Option D

Explanation:

gun powder is the mixture of potassium nitrate powdered charcoal and sulphur.

Similar Questions :

1. What is used to avoid melting of ice ?

Gelatine
Butane
Methane
Any acid

Answer: Option A

2. The major component used in preparation of different types of glasses is :

Sodium borate
Sodium silicate
Silica
Calcium silicate

Answer: Option C

3. pH of water is

5
6
7
8

Answer: Option C

4. Which gas is filled in refrigerators ?

Chlorofluorocarbon
Acetylene
Methane
Butane

Answer: Option A

5. The term PVC used in the plastic industry stands for

polyvinyl chloride
polyvinyl carbobate
phosphor vanadiu chloride
phosphavinyl chloride

Answer: Option A

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