1
JEE Main 2018 (Online) 15th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The increasing order of the acidity of the following carboxylic acids is :
JEE Main 2018 (Online) 15th April Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 219 English
A
I   <   III   <   II   <   IV
B
IV   <   II   <   III   <   I
C
II   <   IV   <   III   <   I
D
III   <   II   <   IV   <   I
2
JEE Main 2018 (Online) 15th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The total number of possible isomers for square-planar [Pt(Cl)(NO2)(NO3)(SCN)]2- is :
A
8
B
12
C
16
D
24
3
JEE Main 2018 (Online) 15th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Two compounds I and II are eluted by column chromatography (adsorption of I > II). Which one of following is a correct statement ?
A
I moves faster and has higher Rf value than II
B
II movesfaster and has higher  Rf  value than I
C
I moves slower and has higher  Rf  value than II
D
II moves slower and has higher  Rf  value than I
4
JEE Main 2018 (Online) 15th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct order of spin-only magnetic moments among the following is :
(Atomic number : Mn = 25, Co = 27, Ni = 28, Zn = 30)
A
[ZnCl4]2- > [NiCl4]2- > [CoCl4]2- > [MnCl4]2-
B
[CoCl4]2- > [MnCl4]2- > [NiCl4]2- > [ZnCl4]2-
C
[NiCl4]2- > [CoCl4]2- > [MnCl4]2- > [ZnCl4]2-
D
[MnCl4]2- > [CoCl4]2- > [NiCl4]2- > [ZnCl4]2-
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