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The appearance of potash-lime glass in colour is:

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in Basic Civil Engineering by (111k points)
The appearance of potash-lime glass in colour is:

(a) Black

(b) Green to colourless

(c) Reddish brown

(d) White

This question was addressed to me during an interview.

My query is from Glass in chapter Materials for Construction of Basic Civil Engineering

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Best answer
The correct choice is (b) Green to colourless

Easiest explanation: The potash-lime glass has a greenish colour as a result of high iron content in the sand used to make the glass.

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