1
JEE Main 2024 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1

Given below are two statements :

Statement (I) : A Buffer solution is the mixture of a salt and an acid or a base mixed in any particular quantities

Statement (II) : Blood is naturally occurring buffer solution whose $$\mathrm{pH}$$ is maintained by $$\mathrm{H}_2 \mathrm{CO}_3 / \mathrm{HCO}_3{ }^{\ominus}$$ concentrations.

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

A
Both Statement I and Statement II are false
B
Both Statement I and Statement II are true
C
Statement I is false but Statement II is true
D
Statement I is true but Statement II is false
2
JEE Main 2024 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1

Given below are two statements :

Statement (I) : All the following compounds react with p-toluenesulfonyl chloride.

$$\mathrm{C}_6 \mathrm{H}_5 \mathrm{NH}_2 \quad\left(\mathrm{C}_6 \mathrm{H}_5\right)_2 \mathrm{NH} \quad\left(\mathrm{C}_6 \mathrm{H}_5\right)_3 \mathrm{N}$$

Statement (II) : Their products in the above reaction are soluble is aqueous $$\mathrm{NaOH}$$.

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

A
Statement I is false but Statement II is true
B
Both Statement I and Statement II are true
C
Both Statement I and Statement II are false
D
Statement I is true but Statement II is false
3
JEE Main 2024 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1

Match List I with List II

LIST I
(Complex ion)
LIST II
(Spin only magnetic moment in B.M.)
A. $$
\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_6\right]^{3+}
$$
I. 4.90
B. $$
\left[\mathrm{NiCl}_4\right]^{2-}
$$
II. 3.87
C. $$
\left[\mathrm{CoF}_6\right]^{3-}
$$
III. 0.0
D. $$
\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}
$$
IV. 2.83

Choose the correct answer from the options given below :

A
(A)-(IV), (B)-(III), (C)-(I), (D)-(II)
B
(A)-(II), (B)-(III), (C)-(I), (D)-(IV)
C
(A)-(I), (B)-(IV), (C)-(II), (D)-(III)
D
(A)-(II), (B)-(IV), (C)-(I), (D)-(III)
4
JEE Main 2024 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1

Which one the following compounds will readily react with dilute $$\mathrm{NaOH}$$ ?

A
$$\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{OH}$$
B
$$\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}$$
C
$$\mathrm{C}_6 \mathrm{H}_5 \mathrm{OH}$$
D
$$\left(\mathrm{CH}_3\right)_3 \mathrm{COH}$$
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