The condensation polymer among the following is Protein

293.    The condensation polymer among the following is

(A) PVC

(B) Polyethene

(C) Rubber

(D) Protein

Answer:: (D)

294.    The correct order in which the first ionisation potential increases is

(A) Na, K, Be

(B) K, Na, Be

(C) K, Be, Na

(D) Be, Na, K

Answer:: (B)

295.    The correct order of increasing bond length of C – H, C – O, C – C and C = C is

(A) C - H < C - O < C – C < C = C

(B) C - H < C = C < C – O < C - C

(C) C - C < C = C < C - O < C - H

(D) C - O < C - H < C - C < C = C

Answer:: (B)

296.    The correct order of ionisation energy of C, N, O, F is

(A) C < N < O < F

(B) C < O < N < F

(C) F < O < N < C

(D) F < N < C < O

Answer:: (B)

297.    The correct sequence of reactions to convert p-nitrophenol into quinol involves ______.

(A) hydrolysis, diazotization and reduction

(B) reduction, diazotization and hydrolysis

(C) diazotization, reduction and hydrolysis

(D) hydrolysis, reduction and diazotization

Answer:: (B)

298.    The correct sequence of steps involved in the mechanism of Cannizzaro's reaction is ______.

(A) transfer of H^-, transfer of H⁺ and nucleophilic attack

(B) nucleophilic attack, transfer of H^- and transfer of H⁺

(C) electrophilic attack by OH^-, transfer of H⁺ and transfer of H^-

(D) transfer of H⁺, nucleophilic attack and transfer of H^-

Answer:: (B)