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Question

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

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Solution

(i) The equation of ethane from sodium propionate:

CH3CH2COONa+NaOH CaO C2H6+Na2CO3

(ii) The equation for ethene from iodoethane:

C2H5I Iodoethane+ KOH alcohol C2H4Ethene + KI + H2O

(iii) The equation for the ethyne from calcium carbide:

CaC2Calcium carbide+2H2OC2H2Ethyne+CaOH2

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