(C) The correct order is $NH_3 > PH_3 > AsH_3 > SbH_3$.As we move down the group,the atomic size of the central atom increases.This leads to the dispe

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(C) The correct order is $NH_3 > PH_3 > AsH_3 > SbH_3$.As we move down the group,the atomic size of the central atom increases.This leads to the dispersion of the lone pair over a larger volume,which decreases the electron density on the central atom.Consequently,the availability of the lone pair for donation decreases,and the basic character decreases.

Class 12 Chemistry p-Block Elements (Class 12)Nitrogen family

Medium

The basic character of hydrides of the $V$-group elements decreases in the order:

AIPMT 1996 All AIPMT

A
$SbH_3 > PH_3 > AsH_3 > NH_3$
B
$NH_3 > SbH_3 > PH_3 > AsH_3$
C
$NH_3 > PH_3 > AsH_3 > SbH_3$
D
$SbH_3 > AsH_3 > PH_3 > NH_3$

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Nitrogen family

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AIPMT 1996 Paper All AIPMT years →

When bismuth chloride is poured into a large volume of water,the white precipitate produced is

Medium

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Which of the following acids forms three series of salts?

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Phosphorus forms a number of oxoacids. Out of these oxoacids,phosphinic acid $(H_3PO_2)$ has strong reducing properties. Write its structure and also write a reaction showing its reducing behavior.

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The bond energies (in $kJ \ mol^{-1}$) of $P-H$, $As-H$, and $N-H$ are respectively:

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What type of element is Moscovium $(Mc)$?

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The basic character of hydrides of the $V$-group elements decreases in the order:

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When bismuth chloride is poured into a large volume of water,the white precipitate produced is

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