Tests For NO2‐ Flashcards
1
Q
Which is the only nitrite that is water insoluble?
A
AgNO2
2
Q
What happens to nitrites in acidic medium
A
They undergo disproportionation to give NO3‐ and NO gas
3
Q
NaNO2+ HCl
A
NaCl + HNO2
4
Q
NO+ O2, where are the brown fumes formed?
A
NO2, top of the test tube
5
Q
Why are N2O4 and NO2 known as mixed anyhydrides?
A
They both give HNO2 and HNO3
6
Q
Does NO2- perform brown ring test?
A
Yes
7
Q
[Fe(H2O)6]SO4 + NO, what is the oxidation state of NO in product
A
[Fe(H2O)5NO]SO4²‐,+1
8
Q
NO2- + KI dil acid
A
I2+ NO + water
9
Q
NO2- + MnO4‐ acidic medium
A
Mn²+ + NO3²- + water
10
Q
NH4Cl + NaNO2
A
NH4NO2
11
Q
What does NH4NO2 give on heating
A
N2 gas
