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JEE Main Chemistry Class 12 The P Block Elements (15-18) Part 2 Questions
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Question : 7
Total: 84
Choose the correct statements about the hydrides of group 15 elements.
A. The stability of the hydrides decreases in the order
NH
3
>
PH
3
>
AsH
3
>
SbH
3
>
BiH
3
B. The reducing ability of the hydrides increases in the order
NH
3
<
PH
3
<
AsH
3
<
SbH
3
<
BiH
3
C. Among the hydrides,
NH
3
is strong reducing agent while
BiH
3
is mild reducing agent.
D. The basicity of the hydrides increases in the order
NH
3
<
PH
3
<
AsH
3
<
SbH
3
<
BiH
3
Choose the most appropriate from the option given below:
[30-Jan-2024 Shift 2]
B and C only
C and D only
A and B only
A and D only
Validate
Solution:
On moving down the group, bond strength of
M
−
H
bond decreases, which reduces the thermal stability but increases reducing nature of hydrides, hence A and B are correct statements.
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