Chemistry
Commonly used antiseptic 'Dettol' is a mixture of

Phenol + terepineol
Chloroxylenol + terepineol
O-cresol + terepineol
O-chlorophenoxylenol + terepineol

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Chemistry
The lustre of the metals is because of

High polish
Reflection of light due to the presence of free electrons
Absorption of light due to the presence of cavities
High density, due to closed packing of atoms

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