1
KCET 2017
MCQ (Single Correct Answer)
+1
-0
Which one of the following noble gas has an unusual property of diffusing through the materials such as rubber, glass or plastic?
A
Kr
B
Ne
C
Ar
D
He
2
KCET 2017
MCQ (Single Correct Answer)
+1
-0
When the pure solvent diffuses out of the solution through the semi-permeable membrane then the process is called
A
sorption
B
dialysis
C
reverse osmosis
D
osmosis
3
KCET 2017
MCQ (Single Correct Answer)
+1
-0
Cannizzaro's reaction is an example of auto oxidation
A
It is a reaction answered by only aldehydes containing a hydrogen.
B
It is a reaction answered only by aromatic aldehydes.
C
It is a reaction answered by all aldehydes.
D
It is a typical reaction of aliphatic aldehyde.
4
KCET 2017
MCQ (Single Correct Answer)
+1
-0
The equilibrium constant for the reaction $\mathrm{N}_2(g)+\mathrm{O}_2(g) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})$ is $4 \times 10^{-4}$ at 2000 K . In presence of a catalyst the equilibrium is attained ten times faster. Therefore the equilibrium constant in presence of catalyst 2000 K is
A
$4 \times 10^{-3}$
B
$4 \times 10^{-2}$
C
$40 \times 10^{-4}$
D
$4 \times 10^{-4}$
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