Question Detail

The luster of a metal is due to :

high polishing
high density
chemical inertness
presence of free electrons

Answer: Option D

Similar Questions :

1. The chemical used as a fixer in photography is ?

sodium thiosulphate
sodium sulphate
borax
ammonium sulphate

Answer: Option A

2. Which gas is filled in refrigerators ?

Chlorofluorocarbon
Acetylene
Methane
Butane

Answer: Option A

3. Atomic number is equal to

Number of electrons
Number of nutron
Number of protons
Total number of protons and neutrons

Answer: Option C

4. Which have the maximum density ?

Water
Benzene
Ice
Chloroform

Answer: Option A

5. Acid rain is due to air pollution by ?

Carbon dioxide
Carbon monoxide
Methane
Nitrous oxide and Sulphur dioxide

Answer: Option D

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