Gas is evolved in which of the chemical reaction-Zinc reacting with dilute sulphuric acid-Iron dropped into copper sulphate solution-Silver Nitrate is added to a Sodium Chloride solution-Ammonia Gas reacting with Hydrochloric Acid-

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Byju's Answer

Standard IX

Chemistry

Observations That Help Determine Chemical Change

Gas is evolve...

Question

Gas is evolved in which of the chemical reaction?

Zinc reacting with dilute sulphuric acid

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Iron dropped into copper sulphate solution.

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Silver Nitrate is added to a Sodium Chloride solution.

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Ammonia Gas reacting with Hydrochloric Acid.

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Solution

The correct option is A
Zinc reacting with dilute sulphuric acid

Zinc on reaction with diluted Sulphuric acid produces Zinc Sulphate and Hydrogen gas.

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Similar questions

What do you observe when

(a) dilute sulphuric acid is added to granulated zinc ?

(b) a few pieces of iron are dropped in a blute solution of sodium chloride ?

(d) ferrous sulphate solution is added to an aqueous solution of sodium hydroxide.

(e) solid lead nitrate is heated ?

(f) when dilute sulphuric acid is added to barium chloride solution ?

What do you observe when

(a) Iron nail is kept in copper sulphate solution for sometime.

(b) Phenolphthalein is added to sodium hydroxidee solution.

(d) Lead nitrate is heated.

(e) magnesium ribbon is burnt in oxygen.

(f)ammonia is brought in contact of hydrogen chloride gas.

Q. The questions (i) to (v) refer to the following salt solutions listed (a) to (f):
(a) Copper nitrate
(b) Iron (II) sulphate
(c) Iron (III) chloride
(d) Lead nitrate
(e) Magnesium sulphate
(f) Zinc chloride

(i) Which two solutions will give a white precipitate when treated with dilute hydrochloric acid followed by barium chloride solution?
(ii) Which two solution will give a white precipitate when treated with dilute nitric acid followed by silver nitrate solution?
(iii) Which solution will give a white precipitate when either dilute hydrochloric acid or dilute sulphuric acid is added to it?
(iv) Which solution becomes a deep/inky blue colour when excess of ammonium hydroxide is added to it?
(v) Which solution gives a white precipitate with excess ammonium hydroxide solution?

Q. Gas is evolved in which of the chemical reaction?
[1mark]
A. Zinc reacting with dilute sulphuric acid
B. Iron dropped into copper sulphate solution.
C. Silver Nitrate is added to a Sodium Chloride solution.
D. Ammonia Gas reacting with Hydrochloric Acid.

2.State one appropriate observation for each of following :

(i) Concentrated sulphuric acid is added drop wise to a crystal of hydrated copper sulphate.

(ii) Excess of chlorine gas is reacted with ammonia gas.

(iii) Copper sulphide is treated with dilute hydrochloric acid.

(iv) A few drops of dilute hydrochloric acid are added to silver nitrate solution,followed by addition of ammonium hydroxide solution.

(v) Electricity is passed through molten lead bromide.

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Gas is evolved in which of the chemical reaction?

The correct option is A Zinc reacting with dilute sulphuric acid Zinc on reaction with diluted Sulphuric acid produces Zinc Sulphate and Hydrogen gas.

The correct option is A
Zinc reacting with dilute sulphuric acid

Zinc on reaction with diluted Sulphuric acid produces Zinc Sulphate and Hydrogen gas.