19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Assertion: Chloral reacts with phenyl chloride to form DDT. Reason: It is an electrophilic substitution reaction
This reaction would follow which of the following pathway predominantly?
(a) (b) (c) (d)
Major product of the following reaction is: (a) (b) (c) (d)
The order of reactivities of the following alkyl halides for a SN2 reaction is
This reaction would follow which of the following pathway predominantly?
Which one of the following will give racemised product in C2H5OH? (a) (b) (c) (d)
Which of the following compounds will undergo SN1 reaction? (a) (b) (c) (d)
The rate of SN1 reaction is fastest with: (a) (b) (c) CH Br CH NO2 Br (d)
Formation of free radical takes place with absorption of minimum energy in the formation of : (a) (b) (c) (d)
When the concentration of alkyl halide is tripled and concentration of OH is reduced to half, the rate of SN2 reaction increased by:
Hydrocarbon (A) reacts with bromine by substitution to form an alkyl bromide which by Wurtz reaction is converted to gaseous hydrocarbon containing less than four carbon atoms. A is (NEET 2018) (a) CH…
Which of the following species is an electrophile?
Which of the following species is an electrophile?
Which of the following species is a nucleophile?
Which of the following species is a nucleophile? (a) CH O
Which of the following species is a nucleophile?
Which of the following species is a nucleophile?
The decreasing order of nucleophilicity among the nucleophiles
Consider the following groups (I) — OCOCH3 (II) — OCH3 (III) — OSO2CH3 (IV) — OSO2CF3 The decreasing order of their leaving ability is
Among these nucleophiles, which of the following orders is correct for their nucleophilicity order in gas phase? - CH , NH , OH ,F (a) - CH >NH >OH >F (b) F OH NH CH (c) - OH >NH >F >CH
Θ Θ Θ Θ C H , N H ,O H,F Among these nucleophiles, which of the following orders is correct for their nucleophilicity in acetone? (a) Θ Θ Θ Θ CH N H O H> F (b) F OH NH CH (c) Θ Θ Θ Θ O H> N H F CH
Θ Θ Θ F, ,Br, I Cl Among these nucleophiles, which of the following orders is correct for their nucleophilicity order in DMF? (a) Θ Θ Θ F> >Br>I Cl (b) Θ Θ Θ Θ I>Br> >F Cl (c) Θ Θ Θ Θ I>Br>F>Cl
Θ Θ Θ Θ F,Cl,Br,I Among these nucleophiles, which of the following orders is correct for their nucleophilicity order in water? (a) Θ Θ Θ Θ F>Cl >Br>I (b) Θ Θ Θ Θ I>Br>Cl>F (c) Θ Θ Θ Θ I>Br>F>Cl (d) none of t…
Light C H Cl C H Cl HCl -> is an example of