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Question
Which of the following hydride is least stable?
Which of the following hydride is least stable?
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Solution
The correct option is B PbH4
In general, the stability of the hydrides of group 14 elements decrease down the group (↓) from C to Pb. Since thermal stability decreases, their tendency to act as reducing agent increases down the group (↓). Therefore, Pb - H bonds are very weak.
PbH4
In general, the stability of the hydrides of group 14 elements decrease down the group (↓) from C to Pb. Since thermal stability decreases, their tendency to act as reducing agent increases down the group (↓). Therefore, Pb - H bonds are very weak.
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