Assigning Oxidation Numbers
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What is the structure of K3CrO8 AND WHAT IS THE OXIDATION NUMBER OF Cr here .…
- 1/2
- 3/2
- 5/2
- 7/2
- S2O2−6<S2O2−4<SO2−3
- S2O2−4<SO2−3<S2O2−6
- SO2−3<S2O2−4<S2O2−6
- S2O24<S2O2−6<SO2−3
Oxidation number of N in N3H (hydrazoic acid) is
Is Chlorine a Reducing Agent?
- + 3
- - 3
- - 2
- \N
The oxidation state of oxygen in KO3, Na2O2 are respectively :
3, 2
1, 0
0, 1
-0.33, -1
- +3, +3
- +3, −3
- −3, +5
- −5, +3
What is the most common oxidation state of fluorine?
Oxidation number of N in (NH4)2SO4 is
−13
-1
+1
-3
Oxidation number of S in S2− is
-2
0
-6
+2
What is the oxidation number for nitrogen?
- H2S2O8
- H2S2O4
- H2S2O6
- None of these.
- + 3
- - 3
- - 2
- \N
H3PO4+OH−→H2PO−4+H2O
H3PO4+2OH−→HPO2−4+2H2O
H3PO4+3OH−→PO3−4+3H2O
- 98, 49, 32.67
- 49, 98, 32.67
- 32.67, 49, 98
- 98, 32.67, 49
2Na2S2O3→Na2S4O6
- 3
- 0.5
- 2
- 1
Oxidation number of N in (NH4)2SO4 is
−13
-1
+1
-3
When K2Cr2O7 is converted to K2CrO4 the change in the oxidation state of chromium is
0
6
4
3
- 2
- \N
- 1
- None of the above
- HCl
- HClO4
- ICl
- Cl2O
- 4
- 3
- 2
- -2
- \N
- 2
- -2
- 4
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- +2, +1 and+12
- +1, +2 and+4
- +1, +1 and+1
- +1, +4 and+2
The oxidation state of the C atom in HCN molecule is
+1
+2
-2
-1
- M/0.85
- M/0.95
- M/0.80
- M/0.90
- CO
- CH4
- CH2Cl2
- CH3Cl
- VO2+→V2O3
- Na→Na+
- CrO2−4→Cr2O2−7
- Zn2+→Zn
Match List I with List II and select the correct answer using the codes given below the lists
List I (Compound) List II (Oxidation state of N)
(A) NO2 (1) +5
(B) HNO (2) -3
(C) NH3 (3) +4
(D) N2O5 (4) +1
- A2 B3 C4 D1
- A3 B1 C2 D4
- A3 B4 C2 D1
- A2 B3 C1 D4
The oxidation state of Oxygen in KO2 is
-2
+2
+1/2
-1/2
- HNO3, NO, NH4Cl, N2
- HNO3, NO, N2, NH4Cl
- HNO3, NH4Cl, NO, N2
- NO, HNO3, NH4Cl, N2