5 g of hydrogen peroxide is present in 56 mL of solution. The solution
5 g of hydrogen peroxide is present in 56 mL of solution. The solution will correspond to
Options
(a) 10 volume (b) 20 volume (c) 30 volume (d) 1.57 volume
Correct Answer:
30 […]
Hydrogen and Redox Reactions
Hardness of water due to presence of salts of
Hardness of water due to presence of salts of
Options
(a) Na⁺ and K⁺ (b) Ca²⁺ and Mg²⁺ (c) Ca²⁺ and K⁺ (d) Ca²⁺ and Na⁺
Correct Answer:
Ca²⁺ and Mg²⁺
Explanation:
No […]
Position of hydrogen in periodic table is such that it can be placed in
Position of hydrogen in periodic table is such that it can be placed in
Options
(a) both 1st and 17th group (b) only 1st group (c) only 17th group (d) neither in 1st […]
In which of the following reaction, the hydrogen peroxide is a reducing agent?
In which of the following reaction, the hydrogen peroxide is a reducing agent?
Options
(a) 2HI + H₂O₂ → 2H₂O + I₂ (b) CI₂ + H₂O₂ → 2HCl + O₂ (c) 2FeCl₂ + […]
In the reaction of H₂O₂ with acidified KMnO₄
In the reaction of H₂O₂ with acidified KMnO₄
Options
(a) H₂O₂ acts as a oxidising agent (b) H₂O₂ acts as a reducing agent (c) KMnO₄ acts as a reducing agent (d) H₂SO₄ acts […]
In the softening of the water by passing it through cationic and anionic exchang
In the softening of the water by passing it through cationic and anionic exchange resins, when water is passed only through the cation exchanger
Options
(a) only permanent hardness is removed (b) the […]
A deutrium is
A deutrium is
Options
(a) an electron with a positive charge (b) a nucleus having two protons (c) a nucleus containing a neutron and two proton (d) a nucleus containing a neutron and […]
Which of the following statement about water is wrong?
Which of the following statement about water is wrong?
Options
(a) It can act as a base (b) It can act as an acid (c) It can act both as an acid and […]
The percentage strength (in g litre⁻¹) of 10 mL of 20 vol.solution of H₂O₂ is
The percentage strength (in g litre⁻¹) of 10 mL of 20 vol.solution of H₂O₂ is
Options
(a) 220.4 (b) 110.2 (c) 150.5 (d) 60.7
Correct Answer:
60.7
Explanation:
No explanation available. Be the […]
What is the approximate percentage of H₂O₂ in a sample labelled as 10 V?
What is the approximate percentage of H₂O₂ in a sample labelled as 10 V?
Options
(a) 10% (b) 9% (c) 3% (d) 1%
Correct Answer:
3%
Explanation:
No explanation available. Be the first […]