Which of the following is not correct about stibanes?

They are formed by the decomposition of

S b_{2} O_{3}

with

L i A l H_{4}

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They are formed by the decomposition of

S b C l_{3}

with

N a B H_{4}

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They decompose into Sb and

H_{2}

on heating

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They are basic in nature

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Solution

The correct option is D They are basic in nature
Stibanes are $S b H_{3}$
a) $4 S b_{2} O_{3} + 6 L i A l H_{4} \to 8 S b H_{3} + 3 L i_{2} O + 3 A l_{2} O_{3}$
b) $4 S b C l_{3} + 3 N a B H_{4} \to 4 S b H_{3} + 3 N a C l + 3 B C l_{3}$
c) On heating
$2 S b H_{3} \to 3 H_{2} + 2 S b$
d) Due to the large size of the central atom $S b H_{3}$ does not show basic properties.

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