1
JEE Main 2017 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The electronic configuration with the highest ionization enthalpy is :
A
[Ne] 3s2 3p1
B
[Ne] 3s2 3p2
C
[Ne] 3s2 3p3
D
[Ar] 3d10 4s2 4p3
2
JEE Main 2017 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
In the following structure, the double bonds are marked as I, II, III and IV

JEE Main 2017 (Online) 9th April Morning Slot Chemistry - Basics of Organic Chemistry Question 243 English

Geometrical isomerism is not possible at site (s) :
A
III
B
I
C
I and III
D
III and IV
3
JEE Main 2017 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
[Co2(CO)8] displays :
A
one Co−Co bond, six terminal CO and two bridging CO
B
one Co−Co bond, four terminal CO and four bridging CO
C
no Co−Co bond, six terminal CO and two bridging CO
D
no Co−Co bond, four terminal CO and four bridging CO
4
JEE Main 2017 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The group having triangular planar structures is :
A
BF3, NF3, $$CO_3^{2 - }$$
B
$$CO_3^{2 - }$$, $$NO_3^ - $$, SO3
C
NH3, SO3, $$CO_3^{2 - }$$
D
NCl3, BCl3, SO3

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