Question Detail

What is the chemical name of table salt ?

Sodium nitrate
Ammonium chloride
Sodium chloride
Calcium chloride

Answer: Option C

Similar Questions :

1. The luster of a metal is due to :

high polishing
high density
chemical inertness
presence of free electrons

Answer: Option D

2. What is laughing gas ?

nitrous oxide
nitric oxide
nitrogen oxide
nitrogen peroxide

Answer: Option A

3. Water drops are spherical because of ?

viscosity
density
polarity
surface tension

Answer: Option D

4. Conduction band electrons have more mobility than holes because they are

experience collision more frequently
experience collision less frequently
have negative charge
need less energy to move them

Answer: Option B

5. 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

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