1
JEE Main 2017 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The incorrect statement among the following is :
A
$$\alpha $$-D-glucose and $$\beta $$-D-glucose are anomers.
B
$$\alpha $$-D-glucose and $$\beta $$-D-glucose are enantiomers.
C
Cellulose is a straight chain polysaccharide made up of only $$\beta $$-D-glucose units.
D
The penta acetate of glucose does not react with hydroxyl amine
2
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
3
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
4
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

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