Prove that `P_2 O_5` a powerful dehydrating agent.

Show that Conc. H_(2)SO_(4) is a dehydrating agent.

Answer any five of the following questions. a) Given reason: (i) Hydrogen bonding in H_2 O but not in H_2 S (ii) Conc. H_2 SO_4 is a good dehydrating agent

Why does O_(3) act as a powerful oxidizing agent?

(a) Give reason: (i) Hydrogen bonding in H_(2)O but not in H_(2)S . (ii) Conc. H_(2)SO_(4) is a good dehydrating agent. (b) Give the structure of sulphurous acid ( H_(2)SO_(3) ).

In the preparation of an ester , the commonly used dehydrating agent is :

H_(2)O_(2) is powerful ______agent

Alkali metals are powerful reducing agents because: