1
JEE Main 2021 (Online) 26th February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
On treating a compound with warm dil. H2SO4, gas X is evolved which turns K2Cr2O7 paper acidified with dil. H2SO4 to a green compound Y. X and Y respectively are :
A
X = SO2, Y = Cr2O3
B
X = SO3, Y = Cr2(SO4)3
C
X = SO3, Y = Cr2O3
D
X = SO2, Y = Cr2(SO4)3
2
JEE Main 2021 (Online) 26th February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
For the given reaction :

JEE Main 2021 (Online) 26th February Morning Shift Chemistry - Haloalkanes and Haloarenes Question 81 English
What is 'A'?
A
JEE Main 2021 (Online) 26th February Morning Shift Chemistry - Haloalkanes and Haloarenes Question 81 English Option 1
B
JEE Main 2021 (Online) 26th February Morning Shift Chemistry - Haloalkanes and Haloarenes Question 81 English Option 2
C
JEE Main 2021 (Online) 26th February Morning Shift Chemistry - Haloalkanes and Haloarenes Question 81 English Option 3
D
CH3CH2CH2NH2
3
JEE Main 2021 (Online) 26th February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Compound A used as a strong oxidizing agent is amphoteric in nature. It is the part of lead storage batteries. Compound A is :
A
PbO
B
PbO2
C
PbSO4
D
Pb3O4
4
JEE Main 2021 (Online) 26th February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Identify the major products A and B respectively in the following reactions of phenol :

JEE Main 2021 (Online) 26th February Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 94 English
A
JEE Main 2021 (Online) 26th February Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 94 English Option 1
B
JEE Main 2021 (Online) 26th February Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 94 English Option 2
C
JEE Main 2021 (Online) 26th February Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 94 English Option 3
D
JEE Main 2021 (Online) 26th February Morning Shift Chemistry - Alcohols, Phenols and Ethers Question 94 English Option 4
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