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Which of the following is used to give amber color to glass?

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+1 vote
in Food Packaging Technology by (63.0k points)
Which of the following is used to give amber color to glass?

(a) CdS + Se

(b) Cu2O + CuO

(c) NiO

(d) Na2S

This question was posed to me in an international level competition.

My question is based upon Properties of Glass topic in section Glass Packaging Materials of Food Packaging Technology

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The correct answer is (d) Na2S

For explanation: Na2S is used to give amber color to glass. CdS + Se is used to give orange color to glass. NiO is used to give purple color to glass. Cu2O + CuO is used to give blue color to glass.

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