MCQ
Which of the following will be optically inactive
- A$A$ only
- B$A$ & $D$
- ✓$A, C$ & $D$
- DAll of these
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Assertion $(A) :$ A simple distillation can be used to separate a mixture of propanol and propanone.
Reason $(R) :$ Two liquids with a difference of more than $20^{\circ} \mathrm{C}$ in their boiling points can be separated by simple distillations.
In the light of the above statements, choose the most appropriate answer from the options given below:
[Atomic numbers of $Cr =24$ and $Mn =25$ ]
$(A)$ $Cr ^{2+}$ is a reducing agent
$(B)$ $Mn ^{3+}$ is an oxidizing agent
$(C)$ Both $Cr ^{2+}$ and $Mn ^{3+}$ exhibit $d^4$ electronic configuration
$(D)$ When $Cr ^{2+}$ is used as a reducing agent, the chromium ion attains $d^5$ electronic configuration