MCQ
Optical isomerism arises due to the presence of
- ✓An asymmetric carbon atom
- BCentre of symmetry
- CAxis of symmetry
- DPlane of symmetry
✓
Answer
Correct option: A.
An asymmetric carbon atom
a
Optical isomerism arises due to presence of an asymmetric carbon atom. There must not be any symmetry elements.
Optical isomerism arises due to presence of an asymmetric carbon atom. There must not be any symmetry elements.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Assertion : If a liquid solute more volatile than the solvent is added to the solvent, the vapour pressure of the solution may increase i.e., $p_s > p^o$.
→Reason : In the presence of a more volatile liquid solute, only the solute will form the vapours and solvent will not.
$\mathrm{X} \mathrm{g}$ of ethylamine is subjected to reaction with $\mathrm{NaNO}_2 / \mathrm{HCl}$ followed by water; evolved dinitrogen gas which occupied $2.24 \mathrm{~L}$ volume at $STP.$ $\mathrm{X}$ is . . . . . .$\times 10^{-1} \mathrm{~g}$.
→An aldehyde on oxidation gives
When lightning flash is produced, which gas may form
Sodium sulphate dissolves in water with evolution of heat. Consider a saturated solution of sodium sulphate. If the temperature is raised, then according to Le-Chatelier principle
In a complexometric tritration of metal ion with ligand $M$ (Metalion) $+L$ (Ligand) $\to $ $C$ (Complex) end point is estimated spectrophotometrically (through light absorption) If $'M'$ and $'C'$ do not absorb light and only $'L'$ absorbs, then the titration plot between absorbed light $(A)$ versus volume of ligand $'L'$ $(V)$ would look like
→When a solution of sodium chloride containing ethyl alcohol is electrolysed, it forms
The major product formed in the following reaction is:
The number of atoms in $0.004$ $g$ of magnesium are
→The correct sequence of reagents for the preparation of $Q$ and $R$ is :
→