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. Which one of the following gas is readily soluble in water at room temperature ?

chlorine
nitrogen
ammonia
carbon dioxide

Answer: Option D

2. Water drops are spherical because of ?

viscosity
density
polarity
surface tension

Answer: Option D

3. A catalyst is a substance which

increases the activation energy
increases the rate of reaction and increases the equilibrium concentration of products
changes the equilibrium of a reaction so that the concentration of the product increases
hastens the attainment of equilibrium

Answer: Option D

4. The aqueous solution of which acids is called Vinegar ?

Acetic acid
Hydrochloric acid
Citric acid
Oxalic acid

Answer: Option A

5. Due to rusting the weight of iron

Decreases
Increases
Remains the same
Uncertain

Answer: Option B

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