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Which of the following acts both as oxidising and reducing agent?

 A) nitric acid B) ammonia C) nitrous acid D) nitrogen peroxide

Explanation:

Nitrous acid act as an oxidising agent because it oxidises potassium iodide to iodine. It is also a reducing agent because it decolourises acidified potassium permanganate solution.

Nitric acid acts only as an oxidising agent

Ammonia acts only as a reducing agent

Nitrogen peroxide acts only as an oxidising agent.

Subject: Chemistry

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• Related Questions

Glass is a.........mixture of metallic...........

 A) homogenous, sulphates B) homogenous, silicates C) heterogenous, carbonates D) heterogenous, nitrates

Explanation:

Subject: Chemistry

0

The pH of pure water is nearly 7.It will increase on the addition of

 A) ammonia B) cane sugar C) common salt D) hydrochloric acid

Explanation:

Ammonia is a base. One adding ammonia to water,the resulting solution will become basic. pH of an alkaline solution is 7. So the pH will increase

Subject: Chemistry

0

The freezing point of water at 760mm pressure is

 A) 0 K B) 273 K C) 273 C D) -273 C

Explanation:

K is degree kelvin

Zero K corresponds to -273  K = C + 273

The freezing point of water being 0 C, on the kelvin scale it is 0 C + 273 K

Subject: Chemistry

0

The Kinetic energy of gas molecules

 A) is unaffected by temperature variations B) decreases with increase of temperature C) increases with decrease of temperature D) increases with increase of temperature

Explanation:

Kinetic Energy $\inline \fn_jvn KE=\frac{1}{2}mv^{2}$ or $\inline \fn_jvn KE\alpha v^{2}$, Where 'm' is the mass and 'v' is the velocity of molecules.

Velocity is proportional to temperature. Hence, KE is proportional to temperature and would increase with temperature.

Subject: Chemistry

13

Which of the following processes is used to remove reducible oxides from the metal?

 A) liquation B) cupellation C) poling D) electro refining