1
JEE Main 2023 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The one giving maximum number of isomeric alkenes on dehydrohalogenation reaction is (excluding rearrangement)

A
2-Bromo-3,3-dimethylpentane
B
2-Bromopropane
C
1-Bromo-2-methylbutane
D
2-Bromopentane
2
JEE Main 2023 (Online) 25th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

JEE Main 2023 (Online) 25th January Morning Shift Chemistry - Hydrocarbons Question 35 English

The correct sequence of reagents for the preparation of Q and R is :

A
$$\mathrm{(i)C{r_2}{O_3},770K,20~atm; (ii)Cr{O_2}C{l_2},{H_3}{O^ + }; (iii)NaOH;(iv){H_3}{O^ + }}$$
B
$$\mathrm{(i)Cr{O_2}C{l_2},{H_3}{O^ + };(ii)C{r_2}{O_3},770K,20~atm;(iii)NaOH;(iv){H_3}{O^ + }}$$
C
$$\mathrm{(i)KMn{O_4},O{H^ - };(ii)M{o_2}{O_3},\Delta ;(iii)NaOH;(iv){H_3}{O^ + }}$$
D
$$\mathrm{(i)M{o_2}{O_3},\Delta ;(ii)Cr{O_2}C{l_2},{H_3}{O^ + };(iii)NaOH;(iv){H_3}{O^ + }}$$
3
JEE Main 2023 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Find out the major products from the following reactions.

JEE Main 2023 (Online) 24th January Evening Shift Chemistry - Hydrocarbons Question 34 English

A
JEE Main 2023 (Online) 24th January Evening Shift Chemistry - Hydrocarbons Question 34 English Option 1
B
JEE Main 2023 (Online) 24th January Evening Shift Chemistry - Hydrocarbons Question 34 English Option 2
C
JEE Main 2023 (Online) 24th January Evening Shift Chemistry - Hydrocarbons Question 34 English Option 3
D
JEE Main 2023 (Online) 24th January Evening Shift Chemistry - Hydrocarbons Question 34 English Option 4
4
JEE Main 2023 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

In the following given reaction, 'A' is

JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Hydrocarbons Question 32 English

A
JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Hydrocarbons Question 32 English Option 1
B
JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Hydrocarbons Question 32 English Option 2
C
JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Hydrocarbons Question 32 English Option 3
D
JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Hydrocarbons Question 32 English Option 4
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