A) Varnish industry only
B) Printing and varnish industries only
C) Gramophone records, varnish, electrically insulated goods and printing industries
D) None of these
Correct Answer: C
Solution :
Lac is used in gramophone records, varnish electrically insulated, goods and printing industries bangles and other cosmetic preparation jewellers and gold smith use lac a filling and sealing material.
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