1
JEE Main 2013 (Offline)
MCQ (Single Correct Answer)
+4
-1
Which of the following complex species is not expected to exhibit optical isomerism?
A
[Co (en)2 Cl2]-
B
[Co (NH3)3 Cl3]
C
[Co (en) (NH3)2 Cl2]+
D
[Co (en)3]3+
2
JEE Main 2013 (Offline)
MCQ (Single Correct Answer)
+4
-1
Synthesis of each molecule of glucose in photosynthesis involves:
A
10 molecules of ATP
B
8 molecules of ATP
C
6 molecules of ATP
D
18 molecules of ATP
3
JEE Main 2013 (Offline)
MCQ (Single Correct Answer)
+4
-1
The rate of a reaction doubles when its temperature changes from 300K to 310K. Activation energy of such a reaction will be:(R = 8.314 JK–1 mol–1 and log 2 = 0.301)
A
48.6 kJ mol–1
B
58.5 kJ mol–1
C
60.5 kJ mol–1
D
53.6 kJ mol–1
4
JEE Main 2013 (Offline)
MCQ (Single Correct Answer)
+4
-1
Which of the following arrangements does not represent the correct order of the property stated against it?
A
Ni2+ < Co2+ < Fe2+ < Mn2+ : ionic size
B
Co3+ < Fe3+ < Cr3+ < Sc3+ : stability in aqueous solution
C
Sc < Ti < Cr < Mn : number of oxidation states
D
V2+ < Cr2+ < Mn2+ < Fe2+ : paramagnetic behaviour

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