1
JEE Main 2021 (Online) 31st August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
For the reaction given below :-

JEE Main 2021 (Online) 31st August Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 77 English

The compound which is not formed as a product in the reaction is a :
A
compound with both alcohol and acid functional groups
B
monocarboxylic acid
C
dicarboxylic acid
D
diol
2
JEE Main 2021 (Online) 31st August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Spin only magnetic moment in BM of [Fe(CO)4(C2O4)]+ is :
A
5.92
B
0
C
1
D
1.73
3
JEE Main 2021 (Online) 31st August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : Lithium salts are hydrated.

Reason (R) : Lithium has higher polarising power than other alkali metal group members.

In the light of the above statements, choose the most appropriate answer from the options given below :
A
Both (A) and (R) are correct but (R) is not the correct explanation of (A)
B
(A) is correct but (R) is not correct.
C
(A) is not correct but (R) is correct.
D
Both (A) and (R) are correct and (R) is the correct explanation of (A)
4
JEE Main 2021 (Online) 31st August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The incorrect expression among the following is :
A
$${{\Delta {G_{System}}} \over {\Delta {S_{Total}}}} = - T$$ (at constant P)
B
$$K = {{\Delta H^\circ - T\Delta S^\circ } \over {RT}}$$
C
$$K = {e^{ - \Delta G^\circ /RT}}$$
D
For isothermal process $${w_{reversible}} = - nRT\ln {{{V_f}} \over {{V_i}}}$$
JEE Main Papers
2023
2021
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12