Every question from past board papers on Organic Compounds Containing Halogens, newest paper first. Open any question for its full worked answer.
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : (primary alkyl iodide drawn as zig-zag chain ending in I) undergoes \(S_N2\) reaction faster than (the corresponding alkyl chloride, zig-zag chain ending in Cl).
Reason (R) : Iodine is a better leaving group because of its large size.
In the light of the above statements, choose the most appropriate answer from the options given below :
The compound that will undergo \(S_N1\) reaction with the fastest rate is
The given compound
\(\mathrm{C_6H_5-CH=CH-CH(X)-CH_2CH_3}\) (benzene ring attached to CH=CH-CH(X)-CH\(_2\)CH\(_3\))
is an example of ________.
The correct sequence of bond enthalpy of 'C–X' bond is :
Identify compound X in the following sequence of reactions :
Toluene (C\(_6\)H\(_5\)CH\(_3\)) \(\xrightarrow{Cl_2/h\nu}\) X \(\xrightarrow[373\ K]{H_2O}\) Benzaldehyde (C\(_6\)H\(_5\)CHO)
Identify A and predict the type of reaction. [Reactant: 3-bromoanisole (benzene ring with OCH3 and Br meta to each other) with NaNH2 gives A]
For the following reactions :
(a) \(CH_3CH_2CH_2Br + KOH \rightarrow CH_3CH=CH_2 + KBr + H_2O\)
(b) (CH3)2CHBr + KOH -> (CH3)2CHOH + KBr (structures shown in figure)
(c) cyclohexene + \(Br_2\) -> 1,2-dibromocyclohexane (structures shown in figure)
Which of the following statements is correct ?
Which of the following compounds shall not produce propene by reaction with HBr followed by elimination or direct only elimination reaction?
Consider the reaction
\(CH_3CH_2CH_2Br + NaCN \rightarrow CH_3CH_2CH_2CN + NaBr\)
This reaction will be the fastest in
