1
JEE Main 2025 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Total number of sigma (σ) _______ and pi(π) ______ bonds respectively present in hex-1-en-4-yne are:

A

14 and 3

B

11 and 3

C

13 and 3

D

3 and 13

2
JEE Main 2025 (Online) 28th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The product B formed in the following reaction sequence is:

JEE Main 2025 (Online) 28th January Evening Shift Chemistry - Hydrocarbons Question 14 English
A
JEE Main 2025 (Online) 28th January Evening Shift Chemistry - Hydrocarbons Question 14 English Option 1
B
JEE Main 2025 (Online) 28th January Evening Shift Chemistry - Hydrocarbons Question 14 English Option 2
C
JEE Main 2025 (Online) 28th January Evening Shift Chemistry - Hydrocarbons Question 14 English Option 3
D
JEE Main 2025 (Online) 28th January Evening Shift Chemistry - Hydrocarbons Question 14 English Option 4
3
JEE Main 2025 (Online) 28th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Identify product [A], [B] and [C] in the following reaction sequence.

$\mathrm{CH}_3-\mathrm{C} \equiv \mathrm{CH} \xrightarrow[\mathrm{H}_2]{\mathrm{Pd} / \mathrm{C}}[\mathrm{A}] \xrightarrow[\text { (ii) } \mathrm{Zn}, \mathrm{H}_2 \mathrm{O}]{\text { (i) } \mathrm{O}_3}[\mathrm{~B}]+[\mathrm{C}]$

A

[A]: CH3—CH=CH2, [B]: CH3CHO, [C]: CH3CH2OH

B

[A]: CH3—CH=CH2, [B]: CH3CHO, [C]: HCHO

C

[A]: CH3CH2CH3, [B]: CH3CHO, [C]: HCHO

D
JEE Main 2025 (Online) 28th January Evening Shift Chemistry - Hydrocarbons Question 13 English Option 4
4
JEE Main 2025 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The product $(\mathrm{A})$ formed in the following reaction sequence is

JEE Main 2025 (Online) 24th January Morning Shift Chemistry - Hydrocarbons Question 7 English

A
JEE Main 2025 (Online) 24th January Morning Shift Chemistry - Hydrocarbons Question 7 English Option 1
B
JEE Main 2025 (Online) 24th January Morning Shift Chemistry - Hydrocarbons Question 7 English Option 2
C
JEE Main 2025 (Online) 24th January Morning Shift Chemistry - Hydrocarbons Question 7 English Option 3
D
JEE Main 2025 (Online) 24th January Morning Shift Chemistry - Hydrocarbons Question 7 English Option 4
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