1
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
Higher order (>3) reactions are rare due to
A
increase in entropy and activation energy as more molecules are involved
B
shifting of equilibrium towards reactants due to elastic collisions
C
loss of active species on collision
D
low probability of simultaneous collision of all the reacting species
2
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
In the context of the Hall-Heroult process for the extraction of Al, which of the following statements is false?
A
Al2O3 is mixed with CaF2 which lowers the melting point of the mixture and brings conductivity
B
Al3+ is reduced at the cathode to form Al
C
Na3AlF6 serves as the electrolyte
D
CO and CO2 are produced in this process
3
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Which among the following is the most reactive?
A
Br2
B
I2
C
ICl
D
Cl2
4
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one has the highest boiling point?
A
Ne
B
Kr
C
Xe
D
He
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