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JIPMER 2014

Exam: JIPMER
Year: 2014
Subject: Chemistry
Chapter: Chemical Bonding and Molecular Structure

JIPMER 2014 · Chemistry · Chemical Bonding and Molecular Structure

Which of the following compounds has the lowest melting point?

Which of the following compounds has the lowest melting point?

Options

A $\mathrm{CaBr}_2$
B $\mathrm{Cal}_2$
C $\mathrm{CaF}_2$
D $\mathrm{CaCl}_2$

Correct answer

B. $\mathrm{Cal}_2$

Step-by-step solution

As covalent character increases, melting point decreases, thus order of melting point is

\mathrm{CaF}_2\gt\mathrm{CaCl}_2\gt\mathrm{CaBr}_2\gt\mathrm{Cal}_2

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