1
JEE Main 2021 (Online) 26th February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following lanthanoids does not form MO2? [M is lanthanoid metal]
A
Nd
B
Dy
C
Yb
D
Pr
2
JEE Main 2021 (Online) 26th February Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Match List - I with List - II.

List - I (Ore) List - II (Element Present)
(a) Kernite (i) Tin
(b) Cassiterite (ii) Boron
(c) Calamine (iii) Fluorine
(d) Cryolite (iv) Zinc


Choose the most appropriate answer from the options given below :
A
(a) $$ \to $$ (i), (b) $$ \to $$ (iii), (c) $$ \to $$ (iv), (d) $$ \to $$ (ii)
B
(a) $$ \to $$ (iii), (b) $$ \to $$ (i), (c) $$ \to $$ (ii), (d) $$ \to $$ (iv)
C
(a) $$ \to $$ (ii), (b) $$ \to $$ (i), (c) $$ \to $$ (iv), (d) $$ \to $$ (iii)
D
(a) $$ \to $$ (ii), (b) $$ \to $$ (iv), (c) $$ \to $$ (i), (d) $$ \to $$ (iii)
3
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
4
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 84 English
What is 'A'?
A
JEE Main 2021 (Online) 26th February Morning Shift Chemistry - Haloalkanes and Haloarenes Question 84 English Option 1
B
JEE Main 2021 (Online) 26th February Morning Shift Chemistry - Haloalkanes and Haloarenes Question 84 English Option 2
C
JEE Main 2021 (Online) 26th February Morning Shift Chemistry - Haloalkanes and Haloarenes Question 84 English Option 3
D
CH3CH2CH2NH2
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