Write down the equation for the preparation of ethyne from calcium carbide.

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Solution

$\underset{Calcium carbide}{{CaC}_{2}} + H_{2} O \to \underset{Ethene}{C_{2} H_{2}} + Ca {(OH)}_{2}$

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Q. Write the equation for the preparation ethyne from Calcium carbide.

Q. Write the equation for the following laboratory preparations:
(i) Ethane from sodium propionate.
(ii) Ethene from iodoethane.
(iii) Ethyne from calcium carbide.

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.

Q. (i) Write the equation for the laboratory preparation of ethyne (acetylene) from calcium carbide.
(ii) What is the special feature of the structure of ethyne?
(iii) What would you see when ethyne is bubbled through a solution of bromine in carbon tetrachloride?
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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

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Write down the equation for the preparation of ethyne from calcium carbide.

CaC2Calcium carbide+H2O→C2H2Ethene+CaOH2

$\underset{Calcium carbide}{{CaC}_{2}} + H_{2} O \to \underset{Ethene}{C_{2} H_{2}} + Ca {(OH)}_{2}$