1
JEE Main 2021 (Online) 26th August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : Barium carbonate is insoluble in water and is highly stable.

Reason (R) : The thermal stability of the carbonates increases with increasing cationic size.
A
Both (A) and (R) are true and (R) is the true explanation of (A)
B
(A) is true but (R) is false
C
Both (A) and (R) are true but (R) is not the true explanation of (A)
D
(A) is false but (R) is true.
2
JEE Main 2021 (Online) 26th August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
JEE Main 2021 (Online) 26th August Evening Shift Chemistry - Compounds Containing Nitrogen Question 102 English
The major product in the above reaction is :
A
JEE Main 2021 (Online) 26th August Evening Shift Chemistry - Compounds Containing Nitrogen Question 102 English Option 1
B
JEE Main 2021 (Online) 26th August Evening Shift Chemistry - Compounds Containing Nitrogen Question 102 English Option 2
C
JEE Main 2021 (Online) 26th August Evening Shift Chemistry - Compounds Containing Nitrogen Question 102 English Option 3
D
JEE Main 2021 (Online) 26th August Evening Shift Chemistry - Compounds Containing Nitrogen Question 102 English Option 4
3
JEE Main 2021 (Online) 26th August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Indicate the complex/complex ion which did not show any geometrical isomerism :
A
[CoCl2(en)2]
B
[Co(CN)5(NC)]3$$-$$
C
[Co(NH3)3(NO2)3]
D
[Co(NH3)4Cl2]+
4
JEE Main 2021 (Online) 26th August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The sol given below with negatively charged colloidal particles is :
A
FeCl3 added to hot water
B
KI added to AgNO3 solution
C
AgNO3 added to KI solution
D
Al2O3.xH2O in water
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