Question

5. Metals react with water and liberate this
gas.
(a) oxygen
(b) hydrogen
(c) sulphur
(d) nitrogen
6. Metals react with bases to form this gas.
(a) nitrogen
(b) oxygen
(c) chlorine
(d) hydrogen
7. This
gas
is used for water purification.
(a) chlorine
(b) nitrogen
(c) hydrogen
(d) sulphur
8. This nonmetal is good conductor of electricity.
(a) oxygen
(b) diamond
(c) graphite)
(d) sulphur​

Answer 1

Answer:

5) Hydrogen

6) Hydrogen

7) Chlorine

8) Graphite

Answer 2

Answer:

5.)b

6.)d

7.)a

8.)c

answer given by p.hemanth