1
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements: one is labelled as Assertion $$\mathbf{A}$$ and the other is labelled as Reason $$\mathbf{R}$$

Assertion A : The energy required to form $$\mathrm{Mg}^{2+}$$ from $$\mathrm{Mg}$$ is much higher than that required to produce $$\mathrm{Mg}^+$$

Reason $$\mathbf{R}: \mathrm{Mg}^{2+}$$ is small ion and carry more charge than $$\mathrm{Mg}^{+}$$

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

A
A is false but R is true
B
Both A and R are correct but R is NOT the correct explanation of A
C
Both A and R are correct and R is the correct explanation of A
D
A is true but R is false
2
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements: one is labelled as Assertion $$\mathbf{A}$$ and the other is labelled as Reason $$\mathbf{R}$$

Assertion A : $$3.1500 \mathrm{~g}$$ of hydrated oxalic acid dissolved in water to make $$250.0 \mathrm{~mL}$$ solution will result in $$0.1 \mathrm{~M}$$ oxalic acid solution.

Reason $$\mathbf{R}$$ : Molar mass of hydrated oxalic acid is $$126 \mathrm{~g} \mathrm{~mol}^{-1}$$

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 true but R is false
C
Both A and R are true and R is the correct explanation of A
D
A is false but R is true
3
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct order of the number of unpaired electrons in the given complexes is

A. $$\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}$$

B. $$\left[\mathrm{Fe} \mathrm{F}_{6}\right]^{3-}$$

C. $$\left[\mathrm{CoF}_{6}\right]^{3-}$$

D. $$\left.[\mathrm{Cr} \text { (oxalate})_{3}\right]^{3-}$$

E. $$\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]$$

Choose the correct answer from the options given below:

A
E < A < B < D < C
B
A < E < D < C < B
C
A < E < C < B < D
D
E < A < D < C < B
4
JEE Main 2023 (Online) 10th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct order for acidity of the following hydroxyl compound is :

A. $$\mathrm{CH}_{3} \mathrm{OH}$$

B. $$\left(\mathrm{CH}_{3}\right)_{3} \mathrm{COH}$$

C. JEE Main 2023 (Online) 10th April Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 35 English 1

D. JEE Main 2023 (Online) 10th April Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 35 English 2

E. JEE Main 2023 (Online) 10th April Evening Shift Chemistry - Alcohols, Phenols and Ethers Question 35 English 3

Choose the correct answer from the options given below:

A
E > C > D > A > B
B
D > E > C > A > B
C
E > D > C > B > A
D
C > E > D > B > A
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