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1
JEE Main 2022 (Online) 24th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
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Which of the following reagents / reactions will convert 'A' to 'B' ?

JEE Main 2022 (Online) 24th June Evening Shift Chemistry - Hydrocarbons Question 65 English

A
PCC oxidation
B
Ozonolysis
C
BH3, H2O2/$$-$$OH followed by PCC oxidation
D
HBr, hydrolysis followed by oxidation by K2Cr2O7.
2
JEE Main 2021 (Online) 1st September Evening Shift
MCQ (Single Correct Answer)
+4
-1
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The stereoisomers that are formed by electrophilic addition of bromine to trans-but-2-ene is/are :
A
2 enantiomers and 2 mesomers
B
2 identical mesomers
C
2 enantiomers
D
1 racemic and 2 enantiomers
3
JEE Main 2021 (Online) 31st August Evening Shift
MCQ (Single Correct Answer)
+4
-1
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For the following sequence of reactions, the correct products are :

JEE Main 2021 (Online) 31st August Evening Shift Chemistry - Hydrocarbons Question 73 English
A
JEE Main 2021 (Online) 31st August Evening Shift Chemistry - Hydrocarbons Question 73 English Option 1
B
JEE Main 2021 (Online) 31st August Evening Shift Chemistry - Hydrocarbons Question 73 English Option 2
C
JEE Main 2021 (Online) 31st August Evening Shift Chemistry - Hydrocarbons Question 73 English Option 3
D
JEE Main 2021 (Online) 31st August Evening Shift Chemistry - Hydrocarbons Question 73 English Option 4
4
JEE Main 2021 (Online) 27th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct sequence of correct reagents for the following transformation is :

JEE Main 2021 (Online) 27th July Evening Shift Chemistry - Hydrocarbons Question 74 English
A
(i) Fe, HCl

(ii) Cl2, HCl

(iii) NaNO2, HCl, 0$$^\circ$$C

(iv) H2O/H+
B
(i) Fe, HCl

(ii) NaNO2, HCl, 0$$^\circ$$C

(iii) H2O/H+

(iv) Cl2, FeCl3
C
(i) Cl2, FeCl3

(ii) Fe, HCl

(iii) NaNO2, HCl, 0$$^\circ$$C

(iv) H2O/H+
D
(i) Cl2, FeCl3

(ii) NaNO2, HCl, 0$$^\circ$$C

(iii) Fe, HCl

(iv) H2O/H+
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