- (A) 2 3-dihydroxy butance 1 4 -dioic acid
- (B) 2 3 -dihydroxy butanedioic acid
- (C) 2 3 -dihydroxy butanioc acid
- (D) 2 2 -dihydroxy butanoic acid
Exam preparation MCQs with answers
Practice Pakistan's most useful MCQs for competitive exams
Prepare for NTS, PPSC, FPSC and subject-wise tests with fresh multiple choice questions, clear options and quick answer reveal.
Latest MCQs
- (A) C6H5OH
- (B) C6H5CH(OH)2
- (C) C6H5CH2OH
- (D) C6H5COOH
- (A) Nucleophilic substitution
- (B) Nucleophilic addition
- (C) Elimination
- (D) both A & C
- (A) primary alcohol
- (B) secondary alcohol
- (C) tertiary alcohol
- (D) dihydric alcohol
- (A) formaldehyde
- (B) ketone
- (C) ethylene epoxide
- (D) both A & C
- (A) they have an electrophilic carbon
- (B) they have an electrophilic carbon & a good leaving group
- (C) they have an electrophilic carbon & a bad leaving group
- (D) they have a nucleophilic carbon & a good leaving group
- (A) E1 + E2
- (B) E2 + SN2
- (C) E1 and SN1
- (D) SN1 and SN2
- (A) Iodoform test
- (B) Lucas test
- (C) Benedicts test
- (D) Tollens test
- (A) cyclohexane
- (B) n – hexane
- (C) 1 – hexanol
- (D) cyclohexanol
- (A) vegetable oil
- (B) coaltar
- (C) wood
- (D) none of these
