Question

which of the following hydride shows highest metallic character ? a) PH3 , b) H2S , c) SiH4 , d) AIH3​

Answer 1

Answer:

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Answer 2

Answer:

The increasing order of the acid strength is CH  

4

​  

<SiH  

4

​  

<PH  

3

​  

<H  

2

​  

S

In a period, the nature of hydrides changes from basic to acidic. Hence, the increasing order of acid strength is SiH  

4

​  

<PH  

3

​  

<H  

2

​  

S.

In a group, the acidic nature of hydrides increases.

Hence, SiH  

4

​  

 is more acidic than CH  

4

​