Question Detail

Which of the following gases is the most toxic?

Carbon dioxide
Sulphur dioxide
Carbon monoxide
Acetic acid

Answer: Option C

Similar Questions :

1. The ejection of electrons when a metal surface is irradiated is known as

Black body radiation
Photoelectric effect
Zeeman effect
Atomic spectrum

Answer: Option B

2. 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

3. What is extracted from Bauxite ?

Mica
Aluminium
Copper
Tin

Answer: Option B

4. The term PVC used in the plastic industry stands for

polyvinyl chloride
polyvinyl carbobate
phosphor vanadiu chloride
phosphavinyl chloride

Answer: Option A

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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