Question

Which of the following compound has lowest melting point ?
(a) RbCI. (b) RbF (c) RbI. (d) RbBr

Answer 1

Answer:

c

Explanation:

The melting points of the compounds are as follows :

RbCl = 718

0

C

RbF = 795

0

C

RbI = 642

0

C

RbBr = 682

0

C

Hence, RbI has lowest melting point.

Therefore, the correct option is C.

Answer 2

Answer:

Rbl is the compound having lowest melting point.

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