1.

State the conditions under which the followingpreaprations are carried out. Giver the necessaryeqactions which need not be balanced. i. Ethabnol form accetllene. ii. Lead tetracthyl from sodium lead alloy. iii. Methyl chloride from aluminium carbide.

Answer»

Solution :i. Etanol from aceetylene:

ii. Lead tetrathyl from sodium - lead alloy:
`4C_(2)H_(5)Br + underset("alloy")underset("Sodium-lead")(4(Na//Pb)) rarr underset("lead")underset("Tetrachtyl")(Pb (C_(2) H_(5))_(4)) + 4 NaBr + 3Pb`
iii. Methyl CHLORIDE form aluminium carbide:
`underset("carbide")underset("Aluminium")(Al_(4)C_(3)) overset(H_(2)O)(rarr) CH_(4) underset(hv)overset(Cl_(2))(rarr) underset("chloride")underset("Methyl")(CH_(3)Cl)`


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