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22 LUNI 2 + 2H2O +U2 (c) Mn + + H20, → Mn+ + 20 (d) PbS + 4H202 → PbSO4 + 4H2O 35. Hydrogen peroxide is obtained by the electrolysis of (a) water (b) sulphuric acid (c) hydrochloric acid (d) fused sodium peroxide. (b) Sup

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Q1

Question 13

Hydrogen peroxide is obtained by the electrolysis of .......

(a) water (b) sulphuric acid

(c) hydrochloric acid (d) fused sodium peroxide

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Q2

Question 12

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 oxgygen

(d) sodium sulphate and hydrogen peroxide

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Q3
15. Which of the following does not evolve oxygen at anode when electrolysis is carried out A) Dilute sulphuric acid with platinum electrode B) Fused sodium hydroxide with platinum electrode C) Acidic water with platinum electrode D) Dilute sulphuric acid with copper electrode
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Q4

Arrange the following in the decreasing order of number of oxygen atoms.

(A) 0.5 moles of sulphuric acid

(B) 1 mole of water

(C) 0.25 moles of nitric acid

(D) 2 moles of hydrogen peroxide

(E) 1 mole of ferric oxide


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Q5

Question 12.
One of the constituents of baking powder is sodium hydrogen carbonate, the other constituent is
(a) hydrochloric acid
(b) tartaric acid
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