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1

JEE Main 2020 (Online) 3rd September Morning Slot

MCQ (Single Correct Answer)

+4

-1

An acidic buffer is obtained on mixing :

A

100 mL of 0.1 M HCl and 200 mL of 0.1 M CH₃COONa

B

100 mL of 0.1 M HCl and 200 mL of 0.1 M NaCl

C

100 mL of 0.1 M CH₃COOH and 100 mL of 0.1 M NaOH

D

100 mL of 0.1 M CH₃COOH and 200 mL of 0.1 M NaOH

2

JEE Main 2020 (Online) 3rd September Morning Slot

MCQ (Single Correct Answer)

+4

-1

The Kjeldahl method of Nitrogen estimation fails for which of the following reaction products? JEE Main 2020 (Online) 3rd September Morning Slot Chemistry - Compounds Containing Nitrogen Question 149 English

JEE Main 2020 (Online) 3rd September Morning Slot Chemistry - Compounds Containing Nitrogen Question 149 English

A

(a), (c) and (d)

B

(b) and (c)

C

(c) and (d)

D

(a) and (d)

3

JEE Main 2020 (Online) 3rd September Morning Slot

MCQ (Single Correct Answer)

+4

-1

Which one of the following compounds possesses the most acidic hydrogen?

A

H₃C - C $$ \equiv $$ C - H

B

JEE Main 2020 (Online) 3rd September Morning Slot Chemistry - Basics of Organic Chemistry Question 151 English Option 2

C

JEE Main 2020 (Online) 3rd September Morning Slot Chemistry - Basics of Organic Chemistry Question 151 English Option 3

D

JEE Main 2020 (Online) 3rd September Morning Slot Chemistry - Basics of Organic Chemistry Question 151 English Option 4

4

JEE Main 2020 (Online) 3rd September Morning Slot

MCQ (Single Correct Answer)

+4

-1

The complex that can show optical activity is :

A

cis-[Fe(NH₃)₂(CN)₄]^–

B

trans-[Cr(Cl₂)(ox)₂]^3–

C

trans-[Fe(NH₃)₂(CN)₄]^–

D

cis-[CrCl₂(ox)₂]^3– (ox = oxalate)

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