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The __________ is obtained by exudation of some types of insects in India.

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The __________ is obtained by exudation of some types of insects in India.

(a) Mastic

(b) Lac

(c) Copal

(d) Gum

The question was asked during an interview.

My question is from Characteristics of Varnishing in portion Painting, Varnishing, Distempering, etc of Construction & Building Materials

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The correct option is (b) Lac

Explanation: The commonly used resins are copal, lac or shellac and rosins. The copal is a hard substance and is available from the Earth at places near Pine trees exist in past. It is available in a variety of forms.

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