The industrial preparation of ethanol is stated from ___

ethyne

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ethene

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ethane

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methane

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Solution

The correct option is B
ethene

$C_{2} H_{4} + H_{2} S O_{4} \to C_{2} H_{5} - H S O_{4}$

$C_{2} H_{5} - H S O_{4} + H_{2} O \to C_{2} H_{5} O H + H_{2} S O_{4}$

Ethene is the starting product in the manufacture of ethyl alcohol.

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Similar questions

Q. Write balanced equations to show the preparation of the following:
(i) ethane from sodium propionate
(ii) ethene from ethanol
(iii) ethyne from calcium carbide
(iv) ethanoic acid from ethane

Q. Classify into alkanes, alkenes and alkynes :

Ethane, ethene, methane, ethyne, propene, propyne

Q. Calculate the molecular masses of the following compounds :
(a) Methane, CH₄
(b) Ethane, C₂H₆
(c) Ethene, C₂H₄
(d) Ethyne, C₂H₂

(Atomic masses : C = 12 u ; H = 1 u)

Q. Give chemical equation for :
(i) The laboratory preparation of methane from sodium acetate.
(ii) The industrial preparation of methanol from water gas.
(iii) The reaction of one mole of ethene with one mole of chlorine gas.
(iv) The preparation of ethyne from 1, 2-dibromoethane.

[4 MARKS]

Write the equations for the following lab. preparations:
(a) Ethane from sodium propionate,
(b) Ethene from Iodoethane,
(c) Ethyne from calcium carbide,
(d) Methanol from Iodomethane.

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The industrial preparation of ethanol is stated from ___

The correct option is B ethene C2H4+H2SO4→C2H5−HSO4 C2H5−HSO4+H2O→C2H5OH+H2SO4 Ethene is the starting product in the manufacture of ethyl alcohol.

The correct option is B
ethene

$C_{2} H_{4} + H_{2} S O_{4} \to C_{2} H_{5} - H S O_{4}$

$C_{2} H_{5} - H S O_{4} + H_{2} O \to C_{2} H_{5} O H + H_{2} S O_{4}$

Ethene is the starting product in the manufacture of ethyl alcohol.