1
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

The products $$\mathrm{A}$$ and $$\mathrm{B}$$ obtained in the following reactions, respectively, are

$$\begin{aligned} & 3 \mathrm{ROH}+\mathrm{PCl}_3 \rightarrow 3 \mathrm{RCl}+\mathrm{A} \\ & \mathrm{ROH}+\mathrm{PCl}_5 \rightarrow \mathrm{RCl}+\mathrm{HCl}+\mathrm{B} \end{aligned}$$

A
$$\mathrm{POCl}_3$$ and $$\mathrm{H}_3 \mathrm{PO}_3$$
B
$$\mathrm{POCl}_3$$ and $$\mathrm{H}_3 \mathrm{PO}_4$$
C
$$\mathrm{H}_3 \mathrm{PO}_4$$ and $$\mathrm{POCl}_3$$
D
$$\mathrm{H}_3 \mathrm{PO}_3$$ and $$\mathrm{POCl}_3$$
2
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

The rate of a reaction quadruples when temperature changes from $$27^{\circ} \mathrm{C}$$ to $$57^{\circ} \mathrm{C}$$. Calculate the energy of activation.

Given $$\mathrm{R}=8.314 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}, \log 4=0.6021$$

A
$$38.04 \mathrm{~kJ} / \mathrm{mol}$$
B
$$380.4 \mathrm{~kJ} / \mathrm{mol}$$
C
$$3.80 \mathrm{~kJ} / \mathrm{mol}$$
D
$$3804 \mathrm{~kJ} / \mathrm{mol}$$
3
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

During the preparation of Mohr's salt solution (Ferrous ammonium sulphate), which of the following acid is added to prevent hydrolysis of $$\mathrm{Fe}^{2+}$$ ion?

A
dilute hydrochloric acid
B
concentrated sulphuric acid
C
dilute nitric acid
D
dilute sulphuric acid
4
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

Major products A and B formed in the following reaction sequence, are

NEET 2024 Chemistry - Alcohol, Phenols and Ethers Question 4 English

A
NEET 2024 Chemistry - Alcohol, Phenols and Ethers Question 4 English Option 1
B
NEET 2024 Chemistry - Alcohol, Phenols and Ethers Question 4 English Option 2
C
NEET 2024 Chemistry - Alcohol, Phenols and Ethers Question 4 English Option 3
D
NEET 2024 Chemistry - Alcohol, Phenols and Ethers Question 4 English Option 4
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