1
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
2
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
3
JEE Main 2021 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Presence of which reagent will affect the reversibility of the following reaction, and change it to a irreversible reaction :

CH4 + I2 $$\mathrel{\mathop{\kern0pt\rightleftharpoons} \limits_{{\mathop{\rm Re}\nolimits} versible}^{hv}} $$ CH3 $$-$$ I + HI
A
HOCl
B
dilute HNO2
C
Liquid NH3
D
Concentrated HIO3
4
JEE Main 2021 (Online) 27th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one among the following chemical tests is used to distinguish monosaccharide from disaccharide?
A
Seliwanoff's test
B
Iodine test
C
Barfoed test
D
Tollen's test
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