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Practice each question, then open the answer or worked solution.
Which of the following reactions increases production of dihydrogen from
synthesis gas?(i) CH4 (g) + H2O (g) →(1270K Ni)CO (g) + 3H2 (g)
(ii) C (s) + H2O (g) → (1270K) CO (g) + H2 (g)
(iii) CO (g) + H2O (g)→ (Catalyst 673K) CO2 (g) + H2 (g)
(iv) C2H6 + 2H2O → (1270K Ni) 2CO + 5H2
Option (iii) is the answer.
When sodium peroxide is treated with dilute sulphuric acid, we get ______.
Option (iv) is the answer.
Hydrogen peroxide is obtained by the electrolysis of ______.
Option (ii) is the answer.
Which of the following reactions is an example of use of water gas in the
synthesis of other compounds?
Option (iv) is the answer.
Which of the following ions will cause hardness in the water sample?
Option (i) is the answer.
Which of the following compounds is used for water softening?
Option (iii) is the answer.
Elements of which of the following group(s) of periodic table do not form
hydrides.
Option (i) is the answer.
Only one element of ________ forms hydride.
Option (i) is the answer.