When zinc metal reacts with dilute nitric acid to give
NO
N2O
NO2
N2O5
Flurospar is
CaSO4
CaF2
CaCl2
CaI2
The basicity of pyrophosphorus acid is
2
4
1
5
Sodium hypo phosphite is obtained by the action boiling NaOH solution with
White P
red p
black p
both a, b, and c
What is prepared by the reaction of Calcium phosphide with water or dil HCl?
Phosphorus
Phosphine
Photons
Phosphoric acid
Large scale production of Nitric acid is
Ostwald's proces
Habes process
Contact process
Mond's process
Which is obtained by the action of water on P4O10 ?
Hypophosphoric acid
Pyrophosphoric acid
Metaphosphoric acid
Orthophosphoric acid
When ethylalcohol reacts with phosphorous pentachloride which is produced?
ethyl chloride
methyl chloride
ethanol chloride
methanoyl chloride.
A noble gas with electronic configuration ns2 is
Ne
He
Ar
Rn
Hypo iodous acid is
HOIO2
HOIO3
HOI
none of these
