Question Detail

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

Similar Questions :

1. 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.

2. Ozone is :

Non-magnetic
Paramagnetic
Ferromagnetic
Diamagnetic

Answer: Option D

3. The most abundant element in the earth's crust is ?

Aluminium
Nitrogen
Silicon
Oxygen

Answer: Option D

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

Sodium borate
Sodium silicate
Silica
Calcium silicate

Answer: Option C

5. Which metal is heaviest ?

osmium
mercury
iron
nickle

Answer: Option A

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