1.

Molecular weight of perchloroethylene is approximately? (Cl-35.5, C-12)(a) 165(b) 166(c) 167(d) 168This question was addressed to me in a national level competition.My query is from Organic Chemicals topic in division Chemical Industries of Chemical Technology

Answer»

The correct option is (b) 166

Easiest explanation: Perchloroethane’s formula is C2Cl4. THEREFORE, its WEIGHT will be 12*2+35.5*4 = 166.



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