Which of the following is a colourless gas having a choking smell of gun powder? (2024)

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Metals Reaction with Oxygen (Burnt in Air)

Which of the ...

Question

Silver sulphide

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Sulphur dioxide

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The correct option is B
Sulphur dioxide
Sulphur dioxide is a colourless gas having a choking smell of gun powder.When a burning piece of sulphur is introduced into a gas-jar filled with oxygen it burns with a light blue flame.In this reaction, colourless sulphur dioxide gas having a choking smell of gun powder is formed.The chemical reaction is as follows:

S+O2→SO2

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Translate the following statements into chemical equations and then balance the equations :

(a) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.

(b) Phosphorus burns in oxygen to give phosphorus pentoxide.

(d) Aluminium metal replaces iron from ferric oxide, Fe2O3 , giving aluminium oxide and iron.

(e) Barium chloride reacts with zinc sulphate to give zine chloride and barium sulphate.

Q. Roasting of sulphides gives the gas X as a byproduct. This is colourless gas with choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic, acts as a reducing agent and its acid has never been isolated. The gas X is:

Q. Choose the correct answer from the options given below:
(i) Hydroxide of this metal is soluble in sodium hydroxide solution.
(a) Magnesium
(b) Lead
(c) Silver
(d) Copper

(ii) When dilute sulphuric acid reacts with iron sulphide, the gas evolved is ________.
(a) Hydrogen sulphide
(b) Sulphur dioxide
(c) Sulphur trioxide
(d) Vapour of sulphuric acid.

Q. By passing hydrogen sulphide gas into an aqueous solution of sulphur dioxide gives:

The gas X is colourless having a foul smell of rotten eggs. It turns lead acetate paper black. Gas X is formed when zinc sulphide reacts with dilute hydrochloric acid. Name the gas X.

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