Hydrogen Test -...

Select the incorrect statement.

Hydrogen differ with alkali metals in which of the following aspect ?

Structure of $$H_2O_2$$ is:

Among the following in which hydrates $$H_{2}O$$ molecules only occupy the interstitial site?  

The $$O-H$$ bond length in $$H_2O$$ is $$xA^o$$. The $$O- H$$ bond length in $$H_2O_2$$ is ?               

The least stable hydride of $$15^{th}$$ group elements is

Which among the following cannot be used to generate $${{\text{H}}_{\text{2}}}$$? 

Which of the following pair behaves strong and weak base hydride :

Which of the following represents saline hydrides?

Property higher for $$H_{2}O$$ than $$H_{2}O_{2}$$