___ is the gas formed when ethanol is treated with hot concentrated sulphuric acid.

Oxygen

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Hydrogen

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Methane

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Ethene

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Solution

The correct option is D Ethene
Heating ethanol with hot concentrated sulphuric acid, results in the dehydration (removal of water) of ethanol to give ethene. Ethene is the gas asked in the question as the other product is water which dilutes the sulphuric acid solution.

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Name the following:

(a) Gases obtained by treating carbon with hot concentrated sulphuric acid.

(b) Substance which turns from blue to white, when concentrated sulphuric acid is added to it.

(d) Solution obtained by dissolving sulphur trioxide in 98% sulphuric acid.

(e) Products obtained by treating ferrous sulphide with dilute sulphuric acid.

(f) The precipitate obtained by treating aqueous lead nitrate with dilute sulphuric acid.

What is formed when Ammonium Iodide is treated with concentrated Sulphuric Acid?

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