An alkane (A) `C_(5)H_(12)` on chlorination at `300^(@)C` gives a mixtrue of four different monochlorinated derivatives `(B), (C ), (D)`, and `(E )`. Two of these derivatives give the same stable alkene `(F)` on dehydrohalogenation. On oxidation with hot alkaline `KMnO_(4)` followed by acidification, `(F)` gives two products `(G) and (H)`. Give the structrues of `(A) t o (H)` with proper reasoning.

An organic compound (A) of molecular formula C_(5)H_(8) when treated with Na in liquid ammonia followed by reaction with -Propyl iodide yeidls (B) C_(8)H_(12) (A) gives a ketone C_(5)H_(10)O (e) when treated with dil H_(2)SO_(4) and HgSO_(4) (B) on oxidation with alkaline KMnO_(4) gives two isomeric acids (D) and (E) C_(4)H_(8)O_(2) . Give structures of compounds (A) to (E) with proper reasoning .

Two different G.R. (A) and (B) give the product (X) on reaction with ( C) and (D) respectively. Give the structures of (A), (B), ( C) and (D) .

Two isomeric compounds, (A) and (B), have the same formula, C_(11)H_(13)OCI . Both are unsaturated, yield the same compound (C) on catalytic hydrogenation, and produce 4-chloro-3-ethoxybenzoic acid on vigorous oxidation. (A) exists in geometrical isomers, (D) and (E), but not (B). Give structures of (A) to (E) with proper reasoning.

An alkane C_(6)H_(14) gives two monochloro derivatives on chlorination. Its possible structure is

An aromatic compound (A), C_(7)H_(5)NO_(2)CI_(2) on reduction with Sn//HCI gives (G), which on reaction with NaNO_(2)//HCI gives (B). Compound (B) does not form a dye with beta -naphthol. However, (B) gives red colour with ceric ammonium nitrate and on oxidation gives an acid (D) of equivalent weight 191. Decarboxylation of (D) gives (E), which forms a mono nitro derivative (F) on nitrotion. Give the structures of (A) to (F) with proper reasoning.

Compound (A)(C_(12)H_(16)) on oxidation with acidic KMnO_(4) solution gives acetone and . Identify compound (A) .

There are five isomeric alkenes (A, B, C, D, and E) that require 1 mol of H_(2) per mole of alkene for hydrogenation and give the same product (F) on hydrogenation. F is an alkane having the lowest molecular mass and is opticalar mass and is optically active. Write the structures of the compounds from A to F.

An acidic compound (A) (C_4 H_8 O_3) loses its optical activity on strong heating yielding (B) (C_4 H_6 O_2) which reacts readly with KMnO_4 . (B) forms a dervative ( C) with SOCl_2 which on reaction with (CH_3)_2 NH gives (D) . The compound (A) on oxidation with dilute chromic acid gives an unstable compound (E) which decarboxylates readily to give (F) (C_3 H_6 O) . The compound (F) gives a hydrocarbon (G) on treatment with amalgamated Zn and HCl . Give the structures of (A) to (G) with proper reasoning.

An organic compound A(C_(4)H_(6)CI) on reation withNa/diethyl ether gives a hydrocarbon which on monochlorination gives only one chloro derivative A is .