19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
In the following sequence of reaction, H O LiAlH KCN CH Br A B C, -> -> -> C is (CBSE AIPMT 2012)
The correct order of increasing reactivity of C – X bond towards nucleophile in the following compounds is (AIPMT 2010)
Consider the following reactions, EtOH/H O (Major) C H Cl AgCN X -> Which one of the following statements is true for X? (EAMCET 2009) I. It gives propanoic acid on hydrolysis. II. It has an ester functional group. I…
Which one of the following species will be most reactive in SN2 reaction? (AMU 2009) (a) (b) (c) (d)
CH CH Br on treatment with LiAlH4 gives ethane gas while (CH3)3C-Br on same treatment gives H2 gas because (OJEE 2009) (a) the former is SN2 and latter is E2 reaction
Which of the following reactions is an example of nucleophilic substitution reaction? (AIPMT 2009)
(a) (b) (b) (d) Cl Cl NO2 C H ONa OC H Cl NO2 Cl OC H NO2 Major 1. HO / 2. H P -> P; P is:
Based on the above reaction, the major product would be (a) (b)
This reaction follows
Haloforms are trihalogen derivatives of
Θ H C-SNa +CH CH -X -> The reaction is fastest when X is:
KSH -> P should be (a) (b)
What is the major product of the following reaction? (a) (b) (c)
Isopropyl bromide on heating with a concentrated solution of alcoholic (ethanolic) KOH predominantly gives
What is the product of the reaction of the following compound with alcoholic potassium hydroxide?
The products obtained when this substrate is subjected to E2 reaction will be (a) (b) (c)
Which of the following products will be major if this substrate is subjected to E2 reaction? (a) (b)
The major product obtained when this substrate is subjected to E2 reaction will be (a) (b) (c)
The major product obtained when this substrate is subjected to E2 reaction will be (a) (b) (c)
The major product obtained when this alkyl halide is subjected to E2 reaction will be (a) (b) CH3 CH2 CH CH2 CH3 alc. KOH - HBr CH3 CH CH CH2 CH3 Br 2 - pentene (c)
The major product obtained when this alkyl halide is subjected to E2 – reaction will be (a) (b) (c) (d)All three products in equal proportions
An halide C5H11Br on treatment with alc. KOH give 2- pentene only. The halide will be: (a) (b) (c) (d)
(a) (b) (c)
Find the major product of the reaction: (a) (b) (c)
In the above reaction, maximum Saytzeff product will be obtained where X is: