10
MCQ (Single Correct Answer)
Hydrogen peroxide is ........... .
A
an oxidising agent
B
a reducing agent
C
both an oxidising and a reducing agent
D
neither oxidising nor reducing agent
11
MCQ (Single Correct Answer)
Which of the following reactions increases production of dihydrogen from synthesis gas?
A
$\mathrm{CH}_4(\mathrm{~g})+\mathrm{H}_2 \mathrm{O}(\mathrm{g}) \xrightarrow[\mathrm{Ni}]{1270 \mathrm{~K}} \mathrm{CO}(\mathrm{g})+3 \mathrm{H}_2(\mathrm{~g})$
B
$\mathrm{C}(\mathrm{s})+\mathrm{H}_2 \mathrm{O}(\mathrm{g}) \xrightarrow{1270 \mathrm{~K}} \mathrm{CO}(\mathrm{g})+\mathrm{H}_2(\mathrm{~g})$
C
$\mathrm{CO}(\mathrm{g})+\mathrm{H}_2 \mathrm{O}(\mathrm{g}) \xrightarrow[\text { Catalyst }]{673 \mathrm{~K}} \mathrm{CO}_2(\mathrm{~g})+\mathrm{H}_2(\mathrm{~g})$
D
$\mathrm{C}_2 \mathrm{H}_6+2 \mathrm{H}_2 \mathrm{O} \xrightarrow[\mathrm{Ni}]{1270 \mathrm{~K}} 2 \mathrm{CO}+5 \mathrm{H}_2$
12
MCQ (Single Correct Answer)
When sodium peroxide is treated with dilute sulphuric acid, we get ............ .
A
sodium sulphate and water
B
sodium sulphate and oxygen
C
sodium sulphate, hydrogen and oxygen
D
sodium sulphate and hydrogen peroxide
13
MCQ (Single Correct Answer)
Hydrogen peroxide is obtained by the electrolysis of .......... .
A
water
B
sulphuric acid
C
hydrochloric acid
D
fused sodium peroxide
14
MCQ (Single Correct Answer)
Which of the following reactions is an example of use of water gas in the synthesis of other compounds?
A
$\mathrm{CH}_4(\mathrm{~g})+\mathrm{H}_2 \mathrm{O}(\mathrm{g}) \xrightarrow[\mathrm{Ni}]{1270 \mathrm{~K}} \mathrm{CO}(\mathrm{g})+\mathrm{H}_2(\mathrm{~g})$
B
$\mathrm{CO}(\mathrm{g})+\mathrm{H}_2 \mathrm{O}(\mathrm{g}) \xrightarrow[\text { Catalyst }]{673 \mathrm{~K}} \mathrm{CO}_2(\mathrm{~g})+\mathrm{H}_2(\mathrm{~g})$
C
$\mathrm{C}_n \mathrm{H}_{2 n+2}+n \mathrm{H}_2 \mathrm{O}(\mathrm{g}) \xrightarrow[\mathrm{Ni}]{1270 \mathrm{~K}} n \mathrm{CO}+(2 n+1) \mathrm{H}_2$
D
$\mathrm{CO}($ g $)+2 \mathrm{H}_2($ g $) \xrightarrow[\text { Catalyst }]{\text { Cobalt }} \mathrm{CH}_3 \mathrm{OH}($ l)