Download App

STD 12 -8.1. Aldehydes and ketones — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 -8.1. Aldehydes and ketones4 Marks
MCQ
Acetophenone can be obtained by the distillation of:
  • A
    $(C_6H_5COO)_2Ca$
  • B
    $(CH_3COO)_2Ca$
  • ✓
    $(C_6H_5COO)_2Ca$ and $(CH_3COO)_2Ca$
  • D
    $(C_6H_5COO)_2Ca$ and $(HCOO)_2Ca$
✓

Answer

Correct option: C.
$(C_6H_5COO)_2Ca$ and $(CH_3COO)_2Ca$
c
Dry distillation of a mixture of calcium acetate and calcium benzoate gives acetophenone.

$\left( C _6 H _5 COO \right)_2 Ca +\left( CH _3 COO \right)_2 Ca \stackrel{\text { dry distillation }}{\longrightarrow} 2 C _6 H _5 COCH _3+ CaCO _3$

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

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

The nature of anode rays depends upon
→
The $IUPAC$ name of the compound $CH_2 = CH -CH(CH_3)_2$ is
→
A solution containing $1.8\,g$ of a compound (empirical formula $CH_2O$ ) in $40\,g$ of water is observed to freeze at $-\,0.465\,^oC$. The molecular formula of the compound is ( $K_f$ of water $= 1.86\,kg\,K\,mol^{-1}$ )
→
An aqueous solution of a non-electrolyte boils at ${100.52\,^o}C$. The freezing point of the solution will be  ............ $^oC$.
→
A mixture of $1-$chloropropane and $2-$chloropropane when treated with alcoholic $KOH$ gives
→
In Friedal-Crafts acylation, besides $AlC{l_3}$, the other reactants are
→
Match each of the diatomic molecules in Column $I$ with its property $/$ properties in Column $II$.
Column $I$ Column $II$
$(A)$ $\mathrm{B}_2$ $(p)$ Paramagnetic
$(B)$ $\mathrm{N}_2$ $(q)$ Undergoes oxidation
$(C)$ $\mathrm{O}_2^{-}$ $(r)$ Undergoes reduction
$(D)$ $\mathrm{O}_2$ $(s)$ Bond order $\geq 2$
  $(t)$ Mixing of   $'\mathrm{s}\ '$ and $'\mathrm{p}\ '$ orbitals
→
For the reaction $N_2O_{5(g)} \rightarrow 2NO_{2(g)} + \frac{1}{2} O_{2(g)}$ the value of rate of disappearance of $N_2O_5$ is given as $6.25 \times 10^{-3}\, mol\, L^{-1}\,s^{-1}.$ The rate of formation of $NO_2$ and $O_2$ is given respectively as
→
Which of the following diagram $/$ statement is correct for the hybrid orbitals
→
Which one of the following explains light both as a stream of particles and as wave motion
→