Q.1.
Ionic hydrides are formed by
Q.2.
In solid ice, oxygen atom is surrounded
Q.3.
When hydrogen peroxide is shaken with an acidified solution of potassium dichromate in presence of ether, the ethereal layer turns blue due to the formation of
Q.4.
The hybridisation of oxygen atom is H2 O and H2Oare, respectively
Q.5.
Non-stoichiometric hydrides are formed by -----
Q.6.
The cause of permanent hardness of water is due to
Q.7.
The hardness of water can be determined by volumetrically using the reagent
Q.8.
Only one element of ________ forms hydride.
Q.9.
Elements of which of the following group(s) of periodic table do not form hydrides.
Q.10.
Hydrogen peroxide is obtained by the electrolysis of