Main 47 · Advanced 31
Haloalkanes and Haloarenes
- Advanced 2026ChemistryList match
Match the major products obtained in the reactions given in List-I with the corresponding structures in List-II and choose the correct option.
- Advanced 2026ChemistryNumerical
The volume of 1 M aqueous required to completely neutralize the ammonia evolved from 5.72 g of L in Kjeldahl's method of nitrogen estimation is ____ mL.
- Advanced 2026ChemistryNumerical
In sulphur estimation by Carius method, the amount of formed from 3.79 g of M is ____ g.
- Main 2026ChemistrySingle correct
Given below are two statements :
Statement (I) : Benzyl chloride reacts faster in mechanism than ethyl chloride.
Statement (II) : Ethyl carbocation intermediate is less stabilized by hyperconjugation than benzyl carbocation by resonance.
In the light of the above statements, choose the correct answer from the options given below :
- Main 2026ChemistrySingle correct
Correct statements regarding alkyl halides (R-X) among the following are :
A. Alcohol being less polar solvent as compared to water, alcoholic KOH favours elimination reaction with R-X.
B. Order of reactivity towards mechanism is .
C. Non substituted aryl halides exhibit properties similar to alkyl halides.
D. Vinyl chloride is an example of haloalkene and allyl chloride is an example of haloalkyne.
E. R-Cl can be prepared by reacting R-OH with but Ar-Cl cannot be prepared by reacting Ar-OH with .
Choose the correct answer from the options given below :
- Main 2026ChemistryList match
Match the LIST-I with LIST-II
Choose the correct answer from the options given below:
- Main 2026ChemistryInteger
RMgI when treated with ice cold water liberated a gas which occupied 1.4 dm³/g at STP. The gas produced is further reacted with iodine in presence of to give compound (X). Compound (X) in presence of Na and dry ether produced compound (Y). Molar mass of compound (Y) is ________ g mol. (Nearest integer)
- Main 2026ChemistrySingle correct
An optically active alkyl bromide , reacts with ethanolic KOH to form major compound [A] which reacts with bromine to give compound [B]. Compound [B] reacts with ethanolic KOH and sodamide to give compound [C]. One molecule of water adds to compound [C] on warming with mercuric sulphate and dilute sulphuric acid at 333 K to form compound [D]. The functional group in compound D will be confirmed by :
- Main 2026ChemistrySingle correct
Given below are two statements :
Statement I : Due to increase in van der Waals forces, the order of boiling points is .
Statement II : As 1,4-dichlorobenzene is more symmetric, its melting point is higher than 1,2-dichlorobenzene, however its boiling point is lower than 1,2-dichlorobenzene.
In the light of the above statements, choose the correct answer from the options given below :
- Advanced 2025ChemistryMultiple correct
For the reaction sequence given below, the correct statement(s) is(are)
(In the options, X is any atom other than carbon and hydrogen, and it is different in P, Q and R)
- Advanced 2025ChemistryNumerical
The reaction sequence given below is carried out with 16 moles of X. The yield of the major product in each step is given below the product in parentheses. The amount (in grams) of S produced is _____.
Use: Atomic mass (in amu): H = 1, C = 12, O = 16, Br = 80
- Advanced 2025ChemistrySingle correct
The correct reaction/reaction sequence that would produce a dicarboxylic acid as the major product is
- Advanced 2024ChemistryMultiple correct
Reaction of iso-propylbenzene with followed by the treatment with forms phenol and a by-product P. Reaction of P with 3 equivalents of gives compound Q. Treatment of Q with produces compound R and calcium salt S.
The correct statement(s) regarding P, Q, R and S is(are)
- Advanced 2024ChemistrySingle correct
In the following reaction sequence, the major product Q is
- Advanced 2023ChemistryList match
Match the reactions in List-I with the features of their products in List-II and choose the correct option.
- Advanced 2023ChemistrySingle correct
In the following reactions, P, Q, R, and S are the major products.
The correct statement about P, Q, R, and S is
- Advanced 2022ChemistryNumerical
The weight percentage of hydrogen in Q, formed in the following reaction sequence, is _____.
[Given: Atomic mass of H = 1, C = 12, N = 14, O = 16, S = 32, Cl = 35]
- Advanced 2022ChemistryInteger
The number of isomeric tetraenes (NOT containing -hybridized carbon atoms) that can be formed from the following reaction sequence is ________.
- Main 2022ChemistrySingle correct
In the given reaction sequence, the major product 'C' is :
- Main 2022ChemistryInteger
Consider the above reaction. The number of electrons present in the product 'P' is ______.