Oxidation Number, Rules for Assigning Oxidation Number NEET Questions

Physical Chemistry - Redox Reactions and Electrochemistry

Oxidation Number, Rules for Assigning Oxidation Number MCQ Questions


13.
Oxidation number of O in OF₂ (oxygen difluoride) is:
A.
+1
B.
-1
C.
-2
D.
+2
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ANSWER :
D. +2
14.
Oxidation number of O in O₂F₂ (dioxygen difluoride) is:
A.
-2
B.
+2
C.
-1
D.
+1
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ANSWER :
D. +1
15.
The oxidation number of hydrogen in most of its compounds is:
A.
0
B.
+1
C.
-1
D.
+2
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ANSWER :
B. +1
16.
In NaH (sodium hydride), the oxidation number of H is:
A.
+2
B.
0
C.
+1
D.
-1
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ANSWER :
D. -1
17.
Oxidation number of hydrogen in CaH₂ is:
A.
+2
B.
-1
C.
+1
D.
0
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ANSWER :
B. -1
18.
Fluorine in all its compounds always has oxidation number:
A.
-1
B.
+1
C.
0
D.
Variable
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ANSWER :
A. -1