Which of the following is the anhydride of nitric acid?
NO
NO2
N2O3
N2O5
D.
N2O5
Anhydrides are formed by the elimination of water from oxyacid. If oxyacid has odd number of hydrogen then elimination of water is done by multiplying by 2.
2 × HNO3 = H2N2O6 N2O5
Chlorine atom differs from chloride in the number of which of the following?
Protons
Neutrons
Electrons
Both (a) and (c)
In the following reaction,
P4 + 3NaOH + 3H2O → PH3 + 3NaH2PO2
phosphorus is oxidised
phosphorus is oxidised and reduced
phosphorus is reduced
sodium is oxidised
The passivity of iron in concentrated nitric acid is due to
ferric nitrate coating on the metal
ammonium nitrate coating on the metal
a thin oxide layer coating on the metal
a hydride coating on the metal
Phosgene is common name of
carbon dioxide and phosphene
phosphoryl chloride
carbonyl chloride
carbon tetrachloride