1
JEE Main 2023 (Online) 25th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
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Match List I with List II

List I (Amines) List II ($$\mathrm{pK_b}$$)
A. Aniline I. 3.25
B. Ethanamine II. 3.00
C. N-Ethylethanamine III. 9.38
D. N, N-Diethylethanamine IV. 3.29

Choose the correct answer from the options given below :

A
A-III, B-II, C-I, D-IV
B
A-III, B-II, C-IV, D-I
C
A-III, B-IV, C-II, D-I
D
A-I, B-IV, C-II, D-III
2
JEE Main 2023 (Online) 25th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
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What is the mass ratio of ethylene glycol ($$\mathrm{C_2H_6O_2}$$, molar mass = 62 g/mol) required for making 500 g of 0.25 molal aqueous solution and 250 mL of 0.25 molar aqueous solution?

A
1 : 2
B
1 : 1
C
2 : 1
D
3 : 1
3
JEE Main 2023 (Online) 25th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
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Find out the major product from the following reaction.

JEE Main 2023 (Online) 25th January Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 51 English

A
JEE Main 2023 (Online) 25th January Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 51 English Option 1
B
JEE Main 2023 (Online) 25th January Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 51 English Option 2
C
JEE Main 2023 (Online) 25th January Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 51 English Option 3
D
JEE Main 2023 (Online) 25th January Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 51 English Option 4
4
JEE Main 2023 (Online) 25th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
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The isomeric deuterated bromide with molecular formula $$\mathrm{C_4H_8DBr}$$ having two chiral carbon atoms is

A
2 - Bromo - 1 - deuterobutane
B
2 - Bromo - 1 - deutero - 2 - methylpropane
C
2 - Bromo - 3 - deuterobutane
D
2 - Bromo - 2 - deuterobutane
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