1
JEE Main 2022 (Online) 29th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The electronic configuration of Pt (atomic number 78) is :

A
[Xe] 4f14 5d9 6s1
B
[Kr] 4f14 5d10
C
[Xe] 4f14 5d10
D
[Xe] 4f14 5d8 6s2
2
JEE Main 2022 (Online) 29th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Two isomers 'A' and 'B' with molecular formula C4H8 give different products on oxidation with KMnO4 in acidic medium. Isomer 'A' on reaction with KMnO4/H+ results in effervescence of a gas and gives ketone. The compound 'A' is

A
But-1-ene.
B
cis-But-2-ene.
C
trans-But-2-ene.
D
2-methyl propene.
3
JEE Main 2022 (Online) 29th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
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JEE Main 2022 (Online) 29th June Morning Shift Chemistry - Haloalkanes and Haloarenes Question 62 English

In the given conversion the compound A is :

A
JEE Main 2022 (Online) 29th June Morning Shift Chemistry - Haloalkanes and Haloarenes Question 62 English Option 1
B
JEE Main 2022 (Online) 29th June Morning Shift Chemistry - Haloalkanes and Haloarenes Question 62 English Option 2
C
JEE Main 2022 (Online) 29th June Morning Shift Chemistry - Haloalkanes and Haloarenes Question 62 English Option 3
D
JEE Main 2022 (Online) 29th June Morning Shift Chemistry - Haloalkanes and Haloarenes Question 62 English Option 4
4
JEE Main 2022 (Online) 29th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements :

Statement I : The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution.

Statement II : Electron withdrawing groups in the carboxylic acid will increase the rate of esterification reaction.

Choose the most appropriate option :

A
Both Statement I and Statement II are correct.
B
Both Statement I and Statement II are incorrect.
C
Statement I is correct but Statement II is incorrect.
D
Statement I is incorrect but Statement II is correct.
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