Question Detail

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

Aluminium
Nitrogen
Silicon
Oxygen

Answer: Option D

Similar Questions :

1. Which of the following gases is the most toxic?

Carbon dioxide
Sulphur dioxide
Carbon monoxide
Acetic acid

Answer: Option C

2. What is Calcium sulphate ?

epsom salt
blue vitriol
gypsum salt
potash alum

Answer: Option C

3. The most abundant rare gas in the atmosphere is ?

He
Ne
Ar
Xe

Answer: Option C

4. Aspirin is

acetyl salicylic acid
sodium salicylate
methyl salicylate
ethyl salicylate

Answer: Option A

5. Contact lenses are made from ?

Polyvinyl chloride
Teflon
Polystyrene
Lucite

Answer: Option A

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