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Question

State True or False.
Out of the following acid base-reactions, reaction (b) and(c) are possible.
a. $$PH_3+\overset{\oplus}{N}H_4 \longrightarrow \overset{\oplus}{P}H_4+NH_3$$
b. $$NH_3+P\overset{\oplus}{H}_4 \longrightarrow N\overset{\oplus}{H}_4+PH_3$$
c. $$(CH_3)_3P+\overset{\oplus}{N}H_4 \longrightarrow (CH_3)_3\overset{\oplus}{P}H+NH_3$$
d. $$(CH_3)_3N+PH_4^{\oplus} \longrightarrow (CH_3)_3\overset{\oplus}{N}H+PH_3$$


A
True
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B
False
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Solution

The correct option is A True
a. $$PH_3+\overset{\oplus}{N}H_4 \longrightarrow \overset{\oplus}{P}H_4+NH_3$$
b. $$NH_3+P\overset{\oplus}{H}_4 \longrightarrow N\overset{\oplus}{H}_4+PH_3$$
c. $$(CH_3)_3P+\overset{\oplus}{N}H_4 \longrightarrow (CH_3)_3\overset{\oplus}{P}H+NH_3$$
d. $$(CH_3)_3N+PH_4^{\oplus} \longrightarrow (CH_3)_3\overset{\oplus}{N}H+PH_3$$
Out of the above acid base-reactions, reaction (b) and (c) are possible due to following reasons.
Ammonia is more basic than phosphine
Ammonia is less basic than $$\displaystyle (CH_3)_3P$$

Chemistry

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