JEE Main 2025 (Online) 2nd April Evening Shift | Practical Organic Chemistry Question 7 | Chemistry

1

JEE Main 2025 (Online) 2nd April Evening Shift

MCQ (Single Correct Answer)

+4

-1

$$ \text { Match List - I with List - II. } $$

List - I (Purification technique)		List - II (Mixture of organic compounds)
(A)	$$ \text { Distillation (simple) } $$	(I)	Diesel + Petrol
(B)	$$ \text { Fractional distillation } $$	(II)	Aniline + Water
(C)	$$ \text { Distillation under reduced pressure } $$	(III)	Chloroform + Aniline
(D)	$$ \text { Steam distillation } $$	(IV)	Glycerol + Spent-lye

$$ \text { Choose the correct answer from the options given below : } $$

A

(A)-(III), (B)-(I), (C)-(IV), (D)-(II)

B

(A)-(III), (B)-(IV), (C)-(II), (D)-(I)

C

(A)-(II), (B)-(IV), (C)-(I), (D)-(III)

D

(A)-(II), (B)-(III), (C)-(IV), (D)-(I)

2

JEE Main 2025 (Online) 23rd January Morning Shift

MCQ (Single Correct Answer)

+4

-1

Given below are two statements:

Statement I: In Lassaigne's test, the covalent organic molecules are transformed into ionic compounds.

Statement II: The sodium fusion extract of an organic compound having N and S gives prussian blue colour with $\mathrm{FeSO}_4$ and $\mathrm{Na}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]$

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

A

Both Statement I and Statement II are false

B

Statement I is false but Statement II is true

C

Both Statement I and Statement II are true

D

Statement I is true but Statement II is false

3

JEE Main 2024 (Online) 9th April Evening Shift

MCQ (Single Correct Answer)

+4

-1

Which of the following compound can give positive iodoform test when treated with aqueous $$\mathrm{KOH}$$ solution followed by potassium hypoiodite.

A

JEE Main 2024 (Online) 9th April Evening Shift Chemistry - Practical Organic Chemistry Question 18 English Option 1

B

JEE Main 2024 (Online) 9th April Evening Shift Chemistry - Practical Organic Chemistry Question 18 English Option 2

C

JEE Main 2024 (Online) 9th April Evening Shift Chemistry - Practical Organic Chemistry Question 18 English Option 3

D

$$\mathrm{CH_3CH_2CH_2CHO}$$

4

JEE Main 2024 (Online) 9th April Evening Shift

MCQ (Single Correct Answer)

+4

-1

Match List I with List II

	LIST I (Test)		LIST II (Observation)
A.	$$\mathrm{Br_2}$$ water test	I.	Yellow orange or orange red precipitate formed
B.	Ceric ammonium nitrate test	II.	Reddish orange colour disappears
C.	Ferric chloride test	III.	Red colour appears
D.	2, 4 - DNP test	IV.	Blue, Green, Violet or Red colour appear

Choose the correct answer from the options given below:

A

A-II, B-III, C-IV, D-I

B

A-III, B-IV, C-I, D-II

C

A-I, B-II, C-III, D-IV

D

A-IV, B-I, C-II, D-III