MCQ
Base catalysed aldol condensation occurs with
- ABenzaldehyde
- B$2, 2-$dimethyl propionaldehyde
- ✓Acetaldehyde
- DFormaldehyde
✓
Answer
Correct option: C.
Acetaldehyde
c
It's Obvious.
It's Obvious.
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
In which case the bond length is minimum between carbon and nitrogen
On the basis of following reaction which one is correct
→${C_{(gr)}} + {O_{2(g)}} \to C{O_{2(g)}}\,\,\,\Delta H = x\,kJ/mol$
${C_{(gr)}} + \frac{1}{2}{O_{2(g)}} \to C{O_{(g)}}\,\,\,\Delta H = y\,kJ/mol$
$C{O_{(g)}} + \frac{1}{2}{O_{2(g)}} \to C{O_2}_{(g)}\,\,\,\Delta H = z\,kJ/mol$
The principal organic product formed in the following reaction is
→$C{H_2} = CH{(C{H_2})_8}COOH + HBr\xrightarrow{{{\text{peroxide}}}}$
In a electrochemical cell
An atom has $26$ electrons and its atomic weight is $56.$ The number of neutrons in the nucleus of the atom will be
→Product $(A)$ of the reaction is
→An aqueous solution of volume $300\,cm ^3$ contains $0.63\,g$ of protein. The osmotic pressure of the solution at $300\,K$ is $1.29\,mbar$. The molar mass of the protein is $.........\,g\,mol ^{-1}$ Given : $R =0.083\,L\,bar\,K ^{-1} mol ^{-1}$
→$1{s^2}2{s^2}2{p^6}3{s^1}$ shows configuration of
→Multiple covalent bonds exist in a molecule of
Given below are two statements: one is labelled as Assertion $(A)$ and the other is labelled as Reason $(R)$. Assertion $(A)$: The total number of geometrical isomers shown by $\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right]^{+}$complex ion is three
→Reason $(R)$: $\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right]^{+}$complex ion has an octahedral geometry.
In the light of the above statements, choose the most appropriate answer from the options given below :