From the following organic compounds given below, choose one compound in each case which relates to the description (i) to (iv): [Ethyne, Ethanol, Acetic acid, Ethene, Methane]
i) An unsaturated hydrocarbon used for welding purposes.

Q. From the following organic compounds given below, choose one compound in each case which relates to the description (i) to (iv): [Ethyne, Ethanol, Acetic acid, Ethene, Methane]
ii) A hydrocarbon which on catalytic hydrogenation gives a saturated hydrocarbon.

Q. From the following organic compounds given below, choose one compound in each case which relates to the description [i] to [iv]: [Ethyne, ethanol, acetic acid, ethene, methane].​

(ii) An organic compound whose functional group is carboxyl.​

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Q. From the list of compounds given, identify the compound which gives formaldehyde on treatment with a suitable reagent.
(a) Ethene (b) Ethyne
(c) Methanol (d) Formic acid
(e) Ethanol (f) Acetic acid

Q. Methane is a saturated hydrocarbon while ethene and ethyne are unsaturated hydrocarbons.

Q. (a) Draw the structural formula of a compound with two carbon atoms in each of the following cases:
(i) An alkane with a carbon to carbon single bond.
(ii) An alcohol containing two carbon atoms.
(iii) An unsaturated hydrocarbon with a carbon to carbon triple bond.

(b) Ethane, Ethene, Ethanoic acid, Ethyne, Ethanol
From the compounds given above, name:
(i) The compound with —OH as a part of its structure.
(ii) The compound with —COOH as a part of its structure.
(iii) Homologue of Homologous series with general formula C_nH_2n.