Give the reactions of ethyne with
(a) Hydrogen
(b) Water
(c) Bromine

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Solution

(a) $\underset{Ethyne}{HC \equiv CH} + \to_{Ni}^{+ H_{2}} \underset{Ethene}{H_{2} C = {CH}_{2}} \to_{Ni}^{+ H_{2}} \underset{Ethane}{H_{3} C - {CH}_{3}}$

(b) $\underset{Ethyne}{C_{2} H_{2}} + H_{2} O + [O] \to_{H_{2} {SO}_{4}}^{{HgSO}_{4}} \underset{Acetaldehyde}{{CH}_{3} CHO}$

(c)

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Give the reactions of ethyne with (a) Hydrogen (b) Water (c) Bromine

(a) HC≡CHEthyne+ →Ni+H2 H2C=CH2Ethene →Ni+H2 H3C-CH3Ethane (b) C2H2Ethyne+H2O+[O]→H2SO4HgSO4 CH3CHOAcetaldehyde (c)

Give the reactions of ethyne with
(a) Hydrogen
(b) Water
(c) Bromine

(a) $\underset{Ethyne}{HC \equiv CH} + \to_{Ni}^{+ H_{2}} \underset{Ethene}{H_{2} C = {CH}_{2}} \to_{Ni}^{+ H_{2}} \underset{Ethane}{H_{3} C - {CH}_{3}}$

(b) $\underset{Ethyne}{C_{2} H_{2}} + H_{2} O + [O] \to_{H_{2} {SO}_{4}}^{{HgSO}_{4}} \underset{Acetaldehyde}{{CH}_{3} CHO}$

(c)