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Which of the following is used for the
preparation of colloids?
2
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A mixture of gases O2, H2 and CO are taken in
a closed vessel containing charcoal. The graph
that represents the correct behaviour of
pressure with time is :
A
B
C
D
3
JEE Main 2020 (Online) 8th January Evening Slot
MCQ (Single Correct Answer)
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For the following Assertion and Reason, the
correct option is
Assertion : For hydrogenation reactions, the catalytic activity increases from Group 5 to Group 11 metals with maximum activity shown by Group 7-9 elements.
Reason : The reactants are most strongly adsorbed on group 7-9 elements.
Assertion : For hydrogenation reactions, the catalytic activity increases from Group 5 to Group 11 metals with maximum activity shown by Group 7-9 elements.
Reason : The reactants are most strongly adsorbed on group 7-9 elements.
4
JEE Main 2020 (Online) 8th January Morning Slot
MCQ (Single Correct Answer)
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Out of Syllabus
As per Hardy-Schulze formulation, the flocculation values of the following for ferric hydroxide sol are in the
order :
Questions Asked from Surface Chemistry (MCQ (Single Correct Answer))
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