1
JEE Main 2021 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
For a reaction of order n, the unit of the rate constant is :
A
mol1$$-$$n L1$$-$$n s
B
mol1$$-$$n L2n s$$-$$1
C
mol1$$-$$n Ln$$-$$1 s$$-$$1
D
mol1$$-$$n L1$$-$$n s$$-$$1
2
JEE Main 2021 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Given below are two statements :

Statement I : Aniline is less basic than acetamide.

Statement II : In aniline, the lone pair of electrons on nitrogen atom is delocalized over benzene ring due to resonance and hence less available to a proton.

Choose the most appropriate option;
A
Statement I is true but statement II is false.
B
Statement I is false but statement II is true.
C
Both statement I and statement II are true.
D
Both statement I and statement II are false.
3
JEE Main 2021 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The type of hybridisation and magnetic property of the complex [MnCl6]3$$-$$, respectively, are :
A
sp3d2 and diamagnetic
B
d2sp3 and diamagnetic
C
d2sp3 and paramagnetic
D
sp3d2 and paramagnetic
4
JEE Main 2021 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The number of geometrical isomers found in the metal
complexes [PtCl2(NH3)2], [Ni(CO)4], [Ru(H2O)3Cl3 and [CoCl2(NH3)4]+ respectively, are :
A
1, 1, 1, 1
B
2, 1, 2, 2
C
2, 0, 2, 2
D
2, 1, 2, 1
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