✓ Board-verified
Chemistry · 2026 · 3 marks
CBSE 2026 · Region 2 · Set 2 · Q26
(a) Write the major product in the following reaction: 1+1+1 (b) Define Chirality. (c) Why racemisation occurs in S_N 1 reaction?
(a)
Write the major product in the following reaction : $\displaystyle 1+1+1$
(b)
Define Chirality.
(c)
Why racemisation occurs in $\displaystyle \mathrm{S}_{\mathrm{N}} 1$ reaction ?
Marking-scheme solution
(a)
(b)
The objects / compounds which are non-superimposable on their mirror images
are said to be chiral and this property is known as chirality.
(c)
Because of formation of planar carbocation / sp2 hybridised carbon so
nucleophile can attack equally from both sides.
All Haloalkanes and Haloarenes questions2026 question paperNCERT solutions: Haloalkanes and HaloarenesPractice Haloalkanes and Haloarenes →
More from Haloalkanes and Haloarenes
- Why haloarenes are not reactive towards nucleophilic substitution reaction? Give two reasons.2023
- Account for the following: 1 × 3 Haloalkanes react with NaCN to form both cyanides and isocyanides. Haloarenes do not undergo nucleophilic…2024
- Reaction of 1-phenyl-2-chloropropane with alcoholic KOH gives mainly:2023
- The species that attacks benzene in following is:2023
- Write the major product in the following reactions: 1+1+1 Define Racemic mixture. p-dichlorobenzene has a higher melting point as compared to its…2026
- In the following pair of compounds, which compound undergoes S_N 1 reaction faster and why? OR Write the major product in the following:2024
- Write the IUPAC name of the given compound: Why are haloalkanes more reactive towards nucleophilic substitution reactions than haloarenes? What…2024
- Assertion: Bromination of benzoic acid gives m-bromobenzoic acid. Reason (R): Carboxyl group increases the electron density at the meta position.2023
CBSE Class 12 Chemistry past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.