Tincal is ____________(a) alum(b) aluminium(c) boric acid(d) boraxThis question was addressed to me in an interview for internship.This intriguing question originated from p-Block Elements topic in division p-Block Elements of Chemistry – Class 11

Tincal is ____________(a) alum(b) aluminium(c) boric acid(d) boraxThis

1.	Tincal is ____________(a) alum(b) aluminium(c) boric acid(d) boraxThis question was addressed to me in an interview for internship.This intriguing question originated from p-Block Elements topic in division p-Block Elements of Chemistry – Class 11
Answer» Correct choice is (d) borax Explanation: Tincal is also KNOWN as the pure and natural form of borax, its CHEMICAL formula is given by Na2B4O7.10H2O, it is one of the important minerals of BORON as boron does not occur in the FREE state, it is an ore of boron that EXISTS in the form of hydrated sodium borate.

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