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JEE Main Chemistry Class 12 General Principles and Process of Isolation of Elements Part 1 Questions
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© examsnet.com
Question : 1
Total: 100
Given below are two statements: one is labelled as Assertion
A
and the other is labelled as Reason
R
Assertion A: In an Ellingham diagram, the oxidation of carbon to carbon monoxide shows a negative slope with respect to temperature.
Reason R: CO tends to get decomposed at higher temperature.
In the light of the above statements, choose the correct answer from the options given below
[1-Feb-2023 Shift 1]
Both A and R are correct and R is the correct explanation of
A
A
is not correct but
R
is correct
Both A and R are correct but R is NOT the correct explanation of
A
A
is correct but
R
is not correct
Validate
Solution:
2
C
(
s
)
+
O
2
(
g
)
→
2
CO
(
g
)
∆
r
S
0
is
+
ve
,
∆
r
G
0
=
∆
r
H
0
−
T
∆
r
S
0
; thus slope is negative
As temperature increases
∆
r
G
0
becomes more negative thus it has lower tendency to get decomposed.
© examsnet.com
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