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
C.
a thin oxide layer coating on the metal
When iron reacts with concentrated HNO3, a thin oxide layer is formed on the metal surface. So, iron becomes passive.
Phosgene is common name of
carbon dioxide and phosphene
phosphoryl chloride
carbonyl chloride
carbon tetrachloride