Which product is obtained by the reduction of propionaldehyde with amalgamated zinc and concentrated $HCl$?

Which of the products is formed when acetone is reacted with barium hydroxide solution?

Which one among the following compounds will most readily be dehydrated under acidic condition?

The given alkene undergoes ozonolysis: $2\text{-methylbut-2-ene}$ $\xrightarrow[{(2)\ H_2O/Zn}]{{(1)\ O_3}} \mathop X\limits_{(C_2H_4O)} + \mathop Y\limits_{(C_3H_6O)}$
$X \xrightarrow[{(2)\ H_2O}]{{(1)\ LiAlH_4}} P$
$Y \xrightarrow[{(2)\ H_2O}]{{(1)\ LiAlH_4}} Q$
Which of the following statements is incorrect for $X$,$Y$,$P$,and $Q$?

Based on the reaction sequence shown,select the incorrect statement about $P_2$. The reaction starts with cyclohexanone reacting with $Mg-Hg/H_2O$ to form $P_1$,which then reacts with conc. $H_2SO_4$ and heat to form $P_2$.

Match List-$I$ with List-$II$.
List-$I$ (Reaction):
$A$. Bicyclohexylidene $\rightarrow$ $2$ Cyclohexanone
$B$. Benzene $\rightarrow$ Benzophenone
$C$. Cyclohexanol $\rightarrow$ Cyclohexanone
$D$. Ethylbenzene $\rightarrow$ Potassium benzoate
List-$II$ (Reagents/Condition):
$I$. Benzoyl chloride / Anhydrous $AlCl_3$
$II$. $CrO_3$
$III$. $KMnO_4 / KOH, \Delta$
$IV$. $(i) O_3, (ii) Zn-H_2O$
Choose the correct answer from the options given below: