Q 1 :

Which one of the following compounds will readily react with dilute NaOH?                           [2024]

• ${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{OH}$

   

• ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2\mathrm{OH}$

   

• ${\left({\mathrm{CH}}_3\right)}_3\mathrm{COH}$

   

• ${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}$

   

Q 2 :

A toxic compound “A” when reacted with NaCN in aqueous acidic medium yields an edible cooking component and food preservative ‘B’. ‘B’ is converted to ‘C’ by diborane and can be used as an additive to petrol to reduce emission. “C” upon reaction with oleum at 140°C yields an inhalable anesthetic “D”. Identify “A”, “B”, “C” and “D”, respectively.          [2025]

• Methanol; formaldehyde; methyl chloride; chloroform

   

• Ethanol; acetonitrile; ethylamine; ethylene

   

• Methanol; acetic acid; ethanol; diethyl ether

   

• Acetaldehyde; 2-hydroxypropanoic acid; propanoic acid; dipropyl ether

   

Q 3 :

Given below are two statements:                   [2025]

Statement I: Dimethyl ether is completely soluble in water. However, diethyl ether is soluble in water to a very small extent.

Statement II: Sodium metal can be used to dry diethyl ether and not ethyl alcohol.

In the light of given statements, choose the correct answer from the options given below:

• Statement I is false but Statement II is true.

   

• Both Statement I and Statement II are false.

   

• Statement I is true but Statement II is false.

   

• Both Statement I and Statement II are true.

   

Q 4 :

The reactions which cannot be applied to prepare an alkene by elimination, are           [2025]

Choose the correct answer from the options given below:

• B and E only

   

• B, C and D only

   

• A, C and D only

   

• B and D only

   

Q 5 :

The correct order for acidity of the following hydroxyl compound is:

Choose the correct answer from the options given below:                      [2023]

• D > E > C > A > B

   

• C > E > D > B > A

   

• E > C > D > A > B

   

• E > D > C > B > A

   

Q 6 :

Match List-I with List-II.                      [2026]

	List-I		List-II
	(Functional group — detection)		(Change observed during detection)
A.	Unsaturation (Baeyer’s test)	I.	Red colour appears
B.	Alcoholic group (Ceric ammonium nitrate test)	II.	Silver mirror appears
C.	Aldehyde group (Tollen’s reagent)	III.	Violet colour appears
D.	Phenolic group (${\mathrm{FeCl}}_3$ test)	IV.	Discharge of pink colour

 

Choose the correct answer from the options given below:

• A–III, B–IV, C–I, D–II

   

• A–III, B–IV, C–II, D–I

   

• A–IV, B–I, C–II, D–III

   

• A–IV, B–III, C–II, D–I

   

Q 7 :

Match the LIST-I with LIST-II                        [2026]

	List-I		List-II
	Reagents		Name of reaction involving carbonyl compounds
A.	${\mathrm{NH}}_2–{\mathrm{NH}}_2,\mathrm{KOH}$	I.	Tollen’s Test
B.	$\mathrm{Ag}{\left({\mathrm{NH}}_3\right)}_2\mathrm{OH}$	II.	Clemmensen Reduction
C.	Aqueous ${\mathrm{CuSO}}_4$, Sodium potassium tartrate, KOH	III.	Wolff–Kishner Reduction
D.	$\mathrm{Zn}–\mathrm{Hg},\mathrm{HCl}$	IV.	Fehling’s Test

 

Choose the correct answer from the options given below:

• A–III, B–IV, C–I, D–II

   

• A–IV, B–III, C–II, D–I

   

• A–III, B–I, C–IV, D–II

   

• A–II, B–I, C–IV, D–III

   

Q 8 :

Given below are two statements:                                [2026]

Statement I: Phenol on treatment with ${\mathrm{CHCl}}_3/\mathrm{aq}.$ KOH under refluxing condition, followed by acidification produces p-hydroxybenzaldehyde as the major product and o-hydroxybenzaldehyde as the minor product.

Statement II: The mixture of p-hydroxybenzaldehyde and o-hydroxybenzaldehyde can be easily separated through steam distillation.

In the light of the above statements, choose the correct answer from the options given below:

• Statement I is false but Statement II is true

   

• Both Statement I and Statement II are false

   

• Statement I is true but Statement II is false

   

• Both Statement I and Statement II are true

   

Q 9 :

A mixed ether (P), when heated with excess of hot concentrated hydrogen iodide produces two different alkyl iodides which when treated with aq. NaOH give compounds (Q) and (R). Both (Q) and (R) give yellow precipitate with NaOI. Identify the mixed ether (P).   [2026]

Q 10 :

Consider the following reaction sequence

Compound (y) develops characteristic colour with neutral ${\mathrm{FeCl}}_3$ solution.

Identify the INCORRECT statement from the following for the above sequence.  [2026]

• Both compounds x and y will dissolve in NaOH.

   

• Compound y will dissolve in ${\mathrm{NaHCO}}_3$ and evolve a gas.

   

• Compound x is more acidic than compound y.

   

• Both compounds x and y will burn with sooty flame.

   

Q 11 :

Assertion (A): Alcohols react as both electrophiles and nucleophiles.

Reason (R): Alcohol (R − OH) reacts with R'MgX to produce R − R'.

• Both A & R are correct and reason R is not correct explanation of A

   

• Both A & R are correct and reason R is correct explanation of A

   

• A is correct and R is not correct

   

• A is not correct and R is correct

   

Q 12 :

Incorrect boiling point order is?

Q 13 :

Consider the following sequence of reactions and identify the final product (Z)

${\mathrm{C}}_6{\mathrm{H}}_6+{\mathrm{CH}}_2={\mathrm{CHCH}}_2\mathrm{Cl} \stackrel{{\mathrm{AlCl}}_3}{\to }\left(X\right)\underset{\left(\mathrm{ii}\right){\mathrm{H}}_2{\mathrm{O}}_2,{\mathrm{OH}}^{-}}{\overset{\left(\mathrm{i}\right){\mathrm{BH}}_3,\mathrm{THF}}{\to }}\left(Y\right)\stackrel{{\mathrm{BF}}_3}{\to }\underset{\mathrm{Major}}{\left(Z\right)\left({\mathrm{C}}_9{\mathrm{H}}_{10}\right)}$

• ${\mathrm{PhCH}}_2\mathrm{CH}={\mathrm{CH}}_2$

   

• $\mathrm{PhCH}=\mathrm{CH}-{\mathrm{CH}}_3$

   

• 

   

• $\mathrm{PhC}\left({\mathrm{CH}}_3\right)={\mathrm{CH}}_2$

   

Q 14 :

$\mathrm{Ph}-\mathrm{O}-\mathrm{CH}{\left({\mathrm{CH}}_3\right)}_2\underset{\Delta }{\overset{\mathrm{Conc}. \mathrm{HI}}{\to }}\underset{\left(\text{Hydroxy compound}\right)}{A}\underset{\Delta }{\overset{\mathrm{Zn}}{\to }}B\underset{{\mathit{AlCl}}_{\mathit{3}}}{\overset{{\mathit{CH}}_{\mathit{3}}\mathit{Cl}}{\mathit{\to }}}C$

The incorrect option among the following is ________

• $A=PhOH$

   

• $B=Benzene$

   

• $C=PhC{H}_3$

   

• $A=PhI$

   

Q 15 :

Choose the CORRECT statements?

a) Alcohols $\left(\mathrm{ROH}\right)$ are weaker acids than benzene sulphonic acid.
    
b) Water is a better proton donor than ethanol.
    
c) $\stackrel{⊝}{\mathrm{N}}{\mathrm{H}}_2$ ion is a better proton acceptor than $\stackrel{⊝}{\mathrm{O}}\mathrm{H}$ ion.
    
d) Sodium ethoxide is a stronger base than sodium hydroxide.

• a, b and c only

   

• b and c only

   

• b, c and d only

   

• a, b, c and d only

   

Q 16 :

What is the final product (C)?

Q 17 :

Match List – I with List – II. 

List – I Reaction	List – II Mechanism
A.   Williamson Synthesis	I.   Electrophilic addition
B.   Friedel Craft Reaction	II.   Free radical substitution
C.   Bromination of vinyl benzene	III.   Nucleophilic substitution
D.   Chlorination of toluene in light	IV.   Electrophilic substitution

 

Choose the correct answer from the options given below:                   [2026]

• A-III, B-I, C-II, D-IV

   

• A-III, B-IV, C-II, D-I

   

• A-III, B-IV, C-I, D-II

   

• A-I, B-III, C-IV, D-II

   

Q 18 :

The major product of which of the following reaction is not obtained by rearrangement reaction?            [2026]

• [IMAGE 231]

   

• [IMAGE 232]

   

• [IMAGE 233]

   

• [IMAGE 234]