Download App

10. Biomolecules — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry10. Biomolecules1 Mark
MCQ
The incorrect statement regarding chirality is :
  • A
    The product obtained by $S _{ N } 2$ reaction of haloalkane having chirality at the reactive site shows inversion of configuration.
  • ✓
    Enantiomers are superimposable mirror images on each other.
  • C
    A racemic mixture shows zero optical rotation.
  • D
    $S_{N} 1$ reaction yields $1: 1$ mixture of both enantiomers.
✓

Answer

Correct option: B.
Enantiomers are superimposable mirror images on each other.
b
Enantiomers are non-superimposable mirror images of each other.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 10. Biomolecules→10. Biomolecules — all question types→Chemistry STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

Reduction of an aldehyde produces
→
Which of the following concentration factor is affected by change in temperature
→
An ideal solution has two components $A$ and $B$. If $A$ is more volatile than $B$ and also ${P_A}^o > {P_T}$, then the correct relation between mole fraction of $A$ in liquid $(x)$ and vapour $(y)$ phase is
→
The disproportionation of $MnO _{4}^{2-}$ in acidic medium resulted in the formation of two manganese compounds $A$ and $B$. If the oxidation state of $Mn$ in $B$ is smaller than that of $A$, then the spin-only magnetic moment $(\mu)$ value of $B$ in $BM$ is $.........$ (Nearest integer)
→
$9.3 \mathrm{~g}$ of pure aniline is treated with bromine water at room temperature to give a white precipitate of the product ' $\mathrm{P}$ '. The mass of product ' $\mathrm{P}$ ' obtained is $26.4 \mathrm{~g}$. The percentage yield is ......... $%$.
→
The correct sequence of reagents used in the preparation of $4 -$bromo$-2-$nitroethyl benzene from benzene is :
→
$"(A)"$ is
→
(image) Which of following is not product of reaction ?
→
The amount of $KMn{O_4}$ required to prepare $100\,ml$ of $0.1\,N$ solution in alkaline medium is ............... $\mathrm{gm}$
→
Which of the Phosphorus oxoacid can create silver mirror from $AgNO _3$ solution ?
→