19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which of the following is an example of SN2 reaction? (a) CH Br OH CH OH Br -> (b) CH3 C CH3 CH3 Cl - Cl- CH3 C CH3 CH3 + Cl CH3 C CH3 CH3 + OH CH3 C CH3 CH3 OH H2O .. .. Θ Me-O-CH -Cl Me-O-CH Cl Me-O=CH…
The compound most reactive towards SN1 reaction is
Which is the best solvent to use for the solvolysis reaction of t-butyl chloride?
Which of the following statements is correct about Retention / inversion of configuration during the course of a reaction? (a)Configuration is retained if reagent attacks from the same side of leaving group. (b)Config…
Consider the following (I) (II) (III) (IV) when attached to sp 3 -hybridized carbon, their leaving group ability in nucleophilic substitution reactions decreases in the order:
Identify compound X in the following sequences of reactions: (NEET 2020) (a) (b) (c) (d)
Alc.KOH CH CH CH Br -> Final product is (JIPMER 2019)
Assertion (A): The boiling points of alkyl halides decreases in the order RI > RBr > RCl > RF Reason (R): The boiling points of alkyl chlorides, bromides and iodides are considerably higher than that of the hydrocarb…
A bromoalkane ‘X’ reacts with magnesium in dry ether to form compound ‘Y’. The reaction of ‘Y’ with methanol followed by hydrolysis yield an alcohol having molecular formula, C4H10O. The compound ‘X’ is (AIIMS 2018)
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…
Among the following, the suitable reagent for Wurtz reaction is (JIPMER 2018)
CH OH/H (i) CO Mg/ether (ii)H O CH Br P ->->-> Which is the product ‘P’ in the above reaction? (JIPMER 2018)
Identify the major product that is obtained on treatment of CH CH CH F CH with CH O / CH OH is (JIPMER 2018) (a) CH CH CH OCH CH (b) CH CH CHCH (c) CH CH CH CH (d) CH CH CH CH OCH SOLID STATE
Neopentyl chloride reacts with benzene in presence of a Lewis acid (AlCl3) to form (JIPMER 2018) (a) (b) (c) (d)
Identify A and predict the type of reaction. (NEET 2017) (a) and elimination addition reaction (b) and cine substitution reaction. (c) and cine substitution. (d) and substitution reaction.
For the following reactions, (i) CH CH CH Br KOH CH CH CH KBr H O -> (ii) (iii) Which of the following statements is correct? (NEET 2016)
Consider the reaction, CH CH CH Br NaCN CH CH CH CN NaBr -> This reaction will be the fastest in (NEET 2016)
The reaction of C6H5CH=CHCH3 with HBr produces (AIPMT 2015)
In an SN1 reaction on chiral centres, there is (AIPMT 2015)
Two possible stereo-structures of CH3CHOHCOOH, which are optically active, are called (AIPMT 2015)
What is the name of the following reactions? NaI Dryacetone CH CH CH Br CH CH CH I -> (EAMCET 2014)
An incorrect statement with respect to SN1 and SN2 mechanisms for alkyl halides is (KCET 2014)
Which of the following compounds will undergo racemization when solution of KOH hydrolyses? (AIPMT 2014) (i) (ii) CH CH CH Cl (iii) (iv)
Which of the following alkyl halide is used as a methylating agent? (KCET 2013) (a) C H Br (b) C H Cl (c) CH Cl (d) C H Cl
I and II are (NEET 2013)