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Mixture

The compounds...

Question

The compounds that should be added to the raw materials in the preparation of red coloured glass are:

A

Ferric compounds

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B

Cuprous compounds

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C

Cobalt compounds

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D

Ferrous and chromium compounds.

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Solution

The correct option is C Cuprous compounds
Annealing of glass is a process of slowly cooling hot glass objects after they have been formed. Cuprous compound must be added to obtain red coloured glass.

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