1
JEE Main 2023 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : Sodium is about 30 times as abundant as potassium in the oceans.

Reason R : Potassium is bigger in size than sodium.

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

A
Both A and R are true but R is NOT the correct explanation of A
B
A is false but R is true
C
Both A and R are true and R is the correct explanation of A
D
A is true but R is false
2
JEE Main 2023 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

LIST I
Coordination Complex
LIST II
Number of unpaired electrons
A. $$\left[\mathrm{Cr}(\mathrm{CN})_{6}\right]^{3-}$$ I. 0
B. $$\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{2+}$$ II. 3
C. $$\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}$$ III. 2
D. $$\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+}$$ IV. 4

Choose the correct answer from the options given below:

A
A-IV, B-III, C-II, D-I
B
A-II, B-I, C-IV, D-III
C
A-II, B-IV, C-I, D-III
D
A-III, B-IV, C-I, D-II
3
JEE Main 2023 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct IUPAC nomenclature for the following compound is:

JEE Main 2023 (Online) 8th April Evening Shift Chemistry - Basics of Organic Chemistry Question 36 English

A
2 - Formyl -5-methylhexan-6-oic acid
B
5-Methyl-2-oxohexan-6-oic acid
C
5-Formyl -2-methylhexanoic acid
D
2-Methyl-5-oxohexanoic acid
4
JEE Main 2023 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Major product '$$\mathrm{P}$$' formed in the following reaction is:

JEE Main 2023 (Online) 8th April Evening Shift Chemistry - Haloalkanes and Haloarenes Question 17 English

A
JEE Main 2023 (Online) 8th April Evening Shift Chemistry - Haloalkanes and Haloarenes Question 17 English Option 1
B
JEE Main 2023 (Online) 8th April Evening Shift Chemistry - Haloalkanes and Haloarenes Question 17 English Option 2
C
JEE Main 2023 (Online) 8th April Evening Shift Chemistry - Haloalkanes and Haloarenes Question 17 English Option 3
D
JEE Main 2023 (Online) 8th April Evening Shift Chemistry - Haloalkanes and Haloarenes Question 17 English Option 4
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