Hydrogen Test -...

The production of dihydrogen obtained from coal gasification can be increased by reacting carbon monoxide of syngas mixture with steam in presence of a catalyst iron-chromium. What is this process called?

Given below are two reaction of water with sodium and carbon dioxide, what is the nature of water in these reaction?
(i)$$2Na+2H_2O\rightarrow 2NaOH +H_2$$
(ii)$$6CO_2+12H_2O\rightarrow C_6H_12_6+6H_2O+6O_2$$

Which of the following is not a process of preparation of hydrogen peroxide? 

Strength of 10 volume hydrogen peroxide solution is:

Study the following reactions and mark the correct properties shown by water :
(i) $$SO_{3} + H_{2}O \rightarrow H_{2}SO_{4}$$
(ii) $$Cl_{2}O_{7} + H_{2}O \rightarrow  2HClO_{4}$$
(iii)$$Na_{2}O + H_{2}O \rightarrow 2NaOH $$
(iv)$$CaO + H_{2}O \rightarrow Ca (OH)_{2}$$

What is the reaction given below, called?
$$H_{2}O_{(l)} + H_{2}O_{(l)} \rightleftharpoons H_{3}O^{+}_{(aq)} + OH^{-}_{(aq)}$$

Match the reactions of column I with their types given in column II and mark the appropriate choice. 

Which of the following reagents cannot be used for the preparation of hydrogen peroxide? 

A commercial sample of hydrogen peroxide is labelled as $$10$$ volume. Its percentage strength is nearly ?

Water plays a key role in the biosphere, It is due to certain properties of $$H_2O$$ as compared to other liquids. These are except: