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

Mass in grams of copper deposited by passing 9.6487 A current through a voltmeter containing copper sulphate solution for 100 seconds is (Given : Molar mass of $$\mathrm{Cu}: 63 \mathrm{~g} \mathrm{~mol}^{-1}, 1 \mathrm{~F}=96487 \mathrm{C}$$)

A
3.15 g
B
0.315 g
C
31.5 g
D
0.0315 g
2
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

For the given reaction:

NEET 2024 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 3 English

'P' is

A
NEET 2024 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 3 English Option 1
B
NEET 2024 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 3 English Option 2
C
NEET 2024 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 3 English Option 3
D
NEET 2024 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 3 English Option 4
3
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 $$\mathrm{POCl}_3$$
4
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
$$3804 \mathrm{~kJ} / \mathrm{mol}$$
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