1
JEE Main 2020 (Online) 5th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The structure of PCl5 in the solid state is :
A
square pyramidal
B
tetrahedral [PCl4]+ and octahedral [PCl6]
C
square planar [PCl4]+ and octahedral [PCl6]
D
trigonal bipyramidal
2
JEE Main 2020 (Online) 5th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The most appropriate reagent for conversion of C2H5CN into CH3CH2CH2NH2 is
A
NaBH4
B
CaH2
C
Na(CN)BH3
D
LiAlH4
3
JEE Main 2020 (Online) 5th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following derivatives of alcohols is unstable in an aqueous base?
A
RO—CMe3
B
JEE Main 2020 (Online) 5th September Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 138 English Option 2
C
JEE Main 2020 (Online) 5th September Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 138 English Option 3
D
JEE Main 2020 (Online) 5th September Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 138 English Option 4
4
JEE Main 2020 (Online) 5th September Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct electronic configuration and spin-only
magnetic moment (BM) of Gd3+ (Z = 64), respectively, are :
A
[Xe]5f7 and 8.9
B
[Xe]4f7 and 7.9
C
[Xe]5f7 and 7.9
D
[Xe]4f7 and 8.9
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