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. Biogas majorly contains ?

Ethane
Methane
Hydrogen
CO

Answer: Option B

2. The metallurgical process in which a metal is obtained in a fused state is called ?

roasting
calcinations
smelting
froth floatation

Answer: Option C

3. Which is not a type of elements ?

Metals
Non Metals
Metalloids
Gases

Answer: Option D

4. Which one is an organic Acid ?

Sulphuric
Citric
Nitric
Phosphoric

Answer: Option B

5. How many different oxides are formed by nitrogen ?

two
three
four
five

Answer: Option A

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