19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The reactivities of CH Cl,CH CH CH Cl and C H Cl are in the order (CMC 2010) (a) CH Cl CH CH Cl C H Cl (b) CH CH CH Cl CH Cl C H Cl (c) C H Cl CH CH CH Cl CH Cl (d) CH Cl C H Cl CH CH C…
Identify Z, in the following series. Br alc.KOH KCN C H I X Y Z -> -> -> (VMMC 2010) (a) CH CH CN (b) NCCH CH CN (c) BrCH CH CN
Which one is most reactive towards SN1 reaction? (AIPMT 2011)
Consider the reactions. (i) C H OH CH CH CH Br CH CH CH OC H HBr -> (ii) C H O CH CH CH Br CH CH CH OC H HBr -> The mechanisms of reactions (i) and (ii) are respectively …
Given reaction, ‘Y’ in the reaction is (DUMET 2011)
Which one of the following is not true for the hydrolysis of t-butyl bromide with aqueous NaOH? (KCET 2011)
Following is the substitution reaction in which –CN replaced –Cl (Alcoholic) R Cl KCN R CN KCl -> To obtain propanenitrile, R-Cl should be (KCET 2011)
Which of the following alkyl halides is hydrolysed by SN2 mechanism? (BVP 2011) (a) C H CH Br (b) CH Br (c) CH CHCH Br
KOH alcohol CH CH CH Br CH CH CH -> The above reaction is an example of …… reaction. (OJEE 2011)
In the replacement reaction The reaction will be most favourable if M happens to be (AIPMT 2012)
In the following sequence of reaction, H O LiAlH KCN CH Br A B C, -> -> -> C is (CBSE AIPMT 2012)
In alkaline hydrolysis of a tertiary halide by aqueous solution of alkali if concentration of alkali is doubled, then the reaction (AIIMS 2012)
When alkyl halide is heated with dry Ag2O, it produces (Manipal 2012)
An alkyl halide with molecular formula C6H13Br on dehydrohalogenation gave two isomeric alkenes X and Y with molecular formula C6H12. On reductive ozonolysis, X and Y gave four compound CH3COCH3, CH3CHO, CH3CH2CHO and…
I and II are (NEET 2013)
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
Which of the following compounds will undergo racemization when solution of KOH hydrolyses? (AIPMT 2014) (i) (ii) CH CH CH Cl (iii) (iv)
An incorrect statement with respect to SN1 and SN2 mechanisms for alkyl halides is (KCET 2014)
What is the name of the following reactions? NaI Dryacetone CH CH CH Br CH CH CH I -> (EAMCET 2014)
Two possible stereo-structures of CH3CHOHCOOH, which are optically active, are called (AIPMT 2015)
In an SN1 reaction on chiral centres, there is (AIPMT 2015)
The reaction of C6H5CH=CHCH3 with HBr produces (AIPMT 2015)
Consider the reaction, CH CH CH Br NaCN CH CH CH CN NaBr -> This reaction will be the fastest in (NEET 2016)
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)
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.