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Ethanol

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Question

Choose the correct word from the bracket.
The product formed when ethene gas reacts with water in the presence of sulphuric acid is ______.

A

ethanol

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B

ethanal

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C

ethanoic acid

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Solution

The correct option is A
ethanol

Ethene:
Ethene has the chemical formula $C_{2} H_{4}$ .
Ethene and water:
When Ethene is reacted with water in the presence of Sulphuric acid, it undergoes hydration.
It forms Ethanol ( $C_{2} H_{5} O H$ ) as a product.
The reaction is given below: ${CH}_{2} = {CH}_{2} (g) + H_{2} O (l) \overset{H_{2} {SO}_{4}}{\to} {CH}_{3} {CH}_{2} OH(l)$
The product formed when ethene gas reacts with water in the presence of sulphuric acid is Ethanol.

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Similar questions

Q. Choose the correct word/phrase from within the brackets to complete the following sentences:
(i) The catalyst used for conversion of ethene to ethane is commonly __________ (nickel/iron/cobalt).
(ii) When acetaldehyde is oxidized with acidified potassium dichromate, it forms _________ (ester/ethanol/acetic acid).
(iii) Ethanoic acid reacts with ethanol in presence of concentrated H₂SO₄, so as to form a compound and water. The chemical reaction which takes place is called __________ (dehydration/hydrogenation/esterification).
(iv) Write the equation for the reaction taking place between 1, 2-dibromoethane and alcoholic potassium hydroxide.
(v) The product formed when ethene gas reacts with water in the presence of sulphuric acid is ________ (ethanal/ethanol/ethanoic acid).

Q. Rewrite the following by choosing the correct word from each pair in brackets.
Acids are compounds that contain (hydrogen/sulphur) atoms. Sulphuric acid is one such example. It is a (strong/weak) acid. It can be neutralised by (acids/alkalis) to form salts called (sulphites/sulphates).
Many (metals/non-metals) react with acids to give a gas called (hydrogen/oxygen). Acid also react with (carbonates/hydroxides) to give (hydrogen/carbon dioxide) gas.
Phenolphthalein turns (pink/colourless) in acids, while litmus turns (red/blue).

Q. Indicate if the following statements are true or false.
(a) Oxides of non-metals dissolve in water to form some acids.
(b) Sulphites are salts formed from sulphuric acid.
(c) Phosphoric acid is tribasic.
(d) Nitric acid can only form normal salts.
(e) Hydrochloric acid can form both carbonates and bicarbonate.
(f) Carbonic acid can form both carbonates and bicarbonates.
(g) Water of crystallisation is found in anhydrous salts.
(h) Litmus turns red in the presence of alkalis.
(i) An acid reacts with a carbonate to form a salt, and hydrogen gas is obtained.
(j) Acid taste sweet.
(k) When the metal zinc reacts with hydrochloric acid, a salt called zinc chloride is formed.
(l) when metals react directly with acids, the reaction is called a displacement reaction.
(m) Sulphuric acid has the formula H₂SO₃.
(n) Carbon dioxide gas is given off as a result of displacement reactions between acids and metals.

Q. Choose the correct word/phrase from within the brackets to complete the following sentences

(v) The product formed when ethene gas reacts with water in the presence of sulphuric acid (ethanol/ethanal/ethanoic acid)

Q. The product formed when ethene gas reacts with water in the presence of sulphuric acid is :

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