Arrange the following in the increasing order of melting points (a)`NH_3`, (b)`CH_3NH_2` , (c )`(CH_3)_2NH` , (d)`(CH_3)_3N`

Question

Arrange the following in the increasing order of melting points (a)`NH_3`, (b)`CH_3NH_2` , (c )`(CH_3)_2NH` , (d)`(CH_3)_3N`

Arrange the following in the increasing order of melting points
(a)`NH_3`, (b)`CH_3NH_2` , (c )`(CH_3)_2NH` , (d)`(CH_3)_3N`
A. a lt bltc lt d
B. dlt cltb lt a
C. a lt dltc lt b
D. None of these.

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
M.pt. of `NH_3CH_3NH_2, (CH_3)_2NH, (CH_3)N` are `-77.7^@ C , -92^@ C, -96^@ C and -117^@ C`.The reason is H-bonding which is maximum in `NH_3` and there is no H-bonding in trimethylamine

4 views Answered 2023-02-05 15:29