1
JEE Main 2024 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
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JEE Main 2024 (Online) 30th January Morning Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 18 English

This reduction reaction is known as:

A
Wolff-Kishner reduction
B
Etard reduction
C
Stephen reduction
D
Rosenmund reduction
2
JEE Main 2024 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
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Compound A formed in the following reaction reacts with B gives the product C. Find out A and B.

JEE Main 2024 (Online) 30th January Morning Shift Chemistry - Hydrocarbons Question 12 English

A
$$\mathrm{A}=\mathrm{CH}_3-\mathrm{C} \equiv \stackrel{-}{\mathrm{C}} \mathrm{Na}^{+}, \mathrm{B}=\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Br}$$
B
$$\mathrm{A}=\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}_2, \mathrm{~B}=\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Br}$$
C
$$\mathrm{A}=\mathrm{CH}_3-\mathrm{C} \equiv \stackrel{-}{\mathrm{C}} \mathrm{Na}^{+}, \mathrm{B}=\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_3$$
D
$$\mathrm{A}=\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_3, \mathrm{~B}=\mathrm{CH}_3-\mathrm{C} \equiv \mathrm{CH}$$
3
JEE Main 2024 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
+4
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Which of the following molecule/species is most stable?

A
JEE Main 2024 (Online) 30th January Morning Shift Chemistry - Basics of Organic Chemistry Question 30 English Option 1
B
JEE Main 2024 (Online) 30th January Morning Shift Chemistry - Basics of Organic Chemistry Question 30 English Option 2
C
JEE Main 2024 (Online) 30th January Morning Shift Chemistry - Basics of Organic Chemistry Question 30 English Option 3
D
JEE Main 2024 (Online) 30th January Morning Shift Chemistry - Basics of Organic Chemistry Question 30 English Option 4
4
JEE Main 2024 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
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What happens to freezing point of benzene when small quantity of napthalene is added to benzene?

A
Increases
B
Decreases
C
Remains unchanged
D
First decreases and then increases
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