Which one of the following is correct with respect to basic character?

P {({C H}_{3})}_{3} > P H_{3}

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P H_{3} > P {(C H_{3})}_{3}

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P H_{3} > N H_{3}

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P H_{3} = N H_{3}

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Solution

The correct option is A $P {({C H}_{3})}_{3} > P H_{3}$
$P (C H_{3})_{3} > P H_{3}$

As the $P (C H_{3})_{3}$ has 3 $C H_{3}$ groups attached to the P , which causes the $+ I$ inductive effect, causing the increase in the electrons density , hence the availability of electrons for the donation is more in the $P (C H_{3})_{3}$ than the $P H_{3}$ .
Hence the basic natuire of $P (C H_{3})_{3}$ is greater than the $P H_{3}$ .
Option A is correct.

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Similar questions

1. S b H_{3} > N H_{3} > A s H_{3} > P H_{3}

2. N H_{3} > P H_{3} > A s H_{3} > S b H_{3}

3. N H_{3} > P H_{3} > A s H_{3} > S b H_{3}

4. N H_{3} > P H_{3} > A s H_{3} > S b H_{3}

1. S b H_{3} > N H_{3} > A s H_{3} > P H_{3}

2. N H_{3} > P H_{3} > A s H_{3} > S b H_{3}

3. N H_{3} > P H_{3} > A s H_{3} > S b H_{3}

4. N H_{3} > P H_{3} > A s H_{3} > S b H_{3}

The increasing order of enthalpy of vaporization of NH₃, PH₃, and AsH₃ is

(1) N H_{3} > P H_{3} > N F_{3} (2) N F_{3} > N H_{3} > P H_{3}

(3) N H_{3} > N F_{3} > P H_{3} (4) P H_{3} > N H_{3} > N F_{3}

N H_{3}, P H_{3}, A S H_{3}, S b H_{3}, B i H_{3}

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