Question Detail

Why is phosphorus kept under water ?

to make it wet
to make it durable
water forms a protective coating on it
to save it from catching fire when exposed to dry air

Answer: Option D

Similar Questions :

1. Which is used in preparation of dynamite ?

glycerol
ethyl alcohol
methyl alcohol
glycol

Answer: Option A

2. Which element found in all organic compounds ?

carbon
nitrogen
calcium
none of them

Answer: Option A

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

Sodium borate
Sodium silicate
Silica
Calcium silicate

Answer: Option C

4. Which one is an organic Acid ?

Sulphuric
Citric
Nitric
Phosphoric

Answer: Option B

5. Mass number of a nucleus is :

the sum of the number of protons and neutrons present in the nucleus
always more than the atomic weight
always less than its atomic number
None of above

Answer: Option A

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