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- (A) Nitre, Sulphur and Charcoal
- (B) TNT and Charcoal
- (C) Sand and TNT
- (D) Sulphur, Sand and Charcoal
Correct Option is: A
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Lustre of the metals is because of?
- (A) High density due to closed packing of atoms.
- (B) High polish.
- (C) Reflection of light due to the presence of free electrons.
- (D) Absorption of light due to the presence of cavities.
Correct Option is: C