TS EAMCET PYQs for Aldehydes, Ketones and Carboxylic Acids with Solutions: Practice TS EAMCET Previous Year Questions

1.

An amine X (C4H11N) on heating with CHCl3 in ethanolic KOH forms a foul-smelling substance. Product of other amine Y (C4H11N) and benzenesulphonyl chloride is insoluble in alkali. What are X and Y respectively?

2.

The products C and D are

• Ethanoic acid, ethanal
• Ethanol, Propanone
• Ethanal, Propanone
• Propanal, Propanone
  

3.

Identify the sets containing correct order against the property mentioned from the following

• I, II only
• II, III only
• I, III only
• I, II, III
  

4.

An alcohol X($C_5H_{12}O$) undergoes dehydration when passed over copper at 573 K. X can be prepared from which of the following reactants?

• $CH_3COCH_3, C_2H_5MgBr$
  
• $HCHO, CH_3CH_2CH(CH_3)MgBr$
  
• $(CH_3)_2CHCH_2CHO, NaBH_4$
  
• $(CH_3)_2CHCH=CH_2, H_2O|H^+$

5.

What is 'Z' in the given set of reactions? C$_6$H$_5$OCH$_3$ $\xrightarrow{HI}$ X + Y Y $\xrightarrow[\text{Anhy. AlCl}_3]{\text{C}_6\text{H}_6}$ Z

• Ethylbenzene
  
• Benzyl chloride
  
• Chlorobenzene
  
• Toluene
  

6.

What are $\text{X}$ and $\text{Y}$ in the following reaction sequence?
$\text{C}_5\text{H}_{12}\text{O} \xrightarrow{\text{Cu}/573 \text{ K}} \text{C}_5\text{H}_{10} \xrightarrow{(\text{i}) \text{O}_3, (\text{ii}) \text{Zn}+\text{H}_2\text{O}} \text{X} + \text{Y}$

• Acetone + Acetaldehyde ($\text{CH}_3\text{COCH}_3 + \text{CH}_3\text{CHO}$)
  
• $\text{C}_3\text{H}_7\text{CH}_2\text{CH}_2\text{OH}$ (Incorrect formula)
  
• $\text{C}_4\text{H}_9\text{CHO}$ (Incorrect formula)
  
• $\text{C}_4\text{H}_9\text{OH}$ (Incorrect formula)
  

7.

Observe the following set of reactions

What are $\text{X}, \text{Y}$ and $\text{Z}$ respectively?

• $\text{H}_2/\text{Pd}; (\text{CH}_3)_2\text{Cd}; \text{C}_6\text{H}_5\text{CH}=\text{CH}-\text{C}_6\text{H}_5$ (This is wrong $\text{C}_6\text{H}_5\text{CH}=\text{CH}-\text{C}_6\text{H}_5$ is stilbene)
  
• $\text{LiAlH}_4, \text{H}_3\text{O}^+; \text{CH}_3\text{MgBr}; \text{C}_6\text{H}_5-\text{C}=\text{CH}-\text{C}_6\text{H}_5$
  
• $\text{H}_2/\text{Pd}-\text{BaSO}_4; (\text{CH}_3)_2\text{Cd}; \text{C}_6\text{H}_5\text{CH}=\text{CH}-\text{C}_6\text{H}_5$
  
• $\text{H}_2/\text{Pd}-\text{BaSO}_4; \text{CH}_3\text{MgBr}; \text{C}_6\text{H}_5\text{CH}=\text{CH}-\text{C}_6\text{H}_5$
  

8.

What are X, Y, Z respectively in the following reaction sequence?
CH$_3$CH=CHCH$_3$ $\xrightarrow{X}$ CH$_3$COOH $\xrightarrow{Y}$ CH$_3$CO-Cl $\xrightarrow{Z, C6H5NH2}$ C$_6$H$_5$NHCOCH$_3$

• KMnO$_4$ | H$^+$, SOCl$_2$, Pyridine
• Cold KMnO$_4$, SOCl$_2$, NH$_3$
• KMnO$_4$ | H$^+$, HCl, NH$_3$
• Cold KMnO$_4$, HCl, Pyridine
  

9.

Identify the incorrect match with respect to compounds to be distinguished and reagent used

10.

Statement I: Boiling point of diethyl ether < 1-butanol.
Statement II: Diethyl ether miscible with water to almost same extent as 1-butanol.

• Both statements I and II are correct
• Both statements I and II are not correct
• Statement I is correct, statement II is not correct
• Statement I is not correct, statement II is correct
  

11.

Which of the following has lowest pK$_a$ value?

• 4-Nitrophenol
  
• Benzoic acid
  
• 4-Methoxybenzoic acid
  
• 4-Nitrobenzoic acid
  

12.

Consider the following set of reactions.
$\text{C}_6\text{H}_5\text{CN} \xrightarrow{\text{B}} \text{Y} \xrightarrow{\text{A}} \text{X} (\text{reacts with } 2,4\text{-DNP})$
$\text{C}_6\text{H}_5\text{CN} \xrightarrow{\text{A}} \text{X} (\text{dissolves in dil. } \text{HCl})$
What are A and B respectively?

• $\text{LiAlH}_4, \text{H}_2\text{O}; \text{H}_2/\text{Ni}$
  
• $\text{Na}/\text{Hg}, \text{C}_2\text{H}_5\text{OH}; \text{DIBAL-H}, \text{H}_2\text{O}$
  
• $\text{DIBAL-H}, \text{H}_2\text{O}; \text{LiAlH}_4, \text{H}_2\text{O}$
  
• $\text{Na}/\text{Hg}, \text{C}_2\text{H}_5\text{OH}; \text{H}_2/\text{Ni}$
  

13.

Which of the following can undergo Hell-Volhard-Zelinsky reaction?

• Benzoic acid
  
• Phenylacetic acid
  
• Phenylacetaldehyde
  
• Methyl phenyl ketone
  

14.

What are X and Y in the following reaction sequence?
$C_6H_5N_2Cl \xrightarrow[H_2O]{283K} X \xrightarrow[OH^-]{C_6H_5N_2Cl} Y$

• 1
• 2
• 3
• 4

15.

Identify the compounds A and B involved in the formation of given aldol