Phosgene is formed slowly from which one of the following on exposure to air and sunlight?
CHCl3
H3CCl
H3COH
C2H5Cl
The volume in mL of 0.1 M solution of NaOH required to completely neutralise 100 mL of 0.3 M solution of H3PO3 is
60
600
300
30
What are the products formed when moist chlorine gas is reacted with hypo?
Na2SO4, S, HCl
Na2SO3, S, HCl
Na2S4O6, Na2SO3, HCl
Na2S4O6, NaCl, HCl
The hybridisation of Xe and the number of lone pairs of electrons on it in XeF6 are
sp3d2, 1
sp3d3, 2
sp3d2, 2
sp3d3, 1
0.16 g of an organic compound containing sulphur produces 0.233 g of BaSO4. Percentage of sulphur in the compound is
20
80
50
10
Which one of the following cannot form an amphoteric oxides?
Al
Sn
Sb
P
D.
P
Phosphorus being a non-metal always forms acidic oxides like P2O3, P5O10, etc. Al2O3, SnO and Sb2O3 are amphoteric oxides i.e., react with acids as well as bases.
Which one of the following is not correct?
Pyrophosphoric acid is a tetrabasic acid.
Pyrophosphoric acid contains P-O-P linkage. Pyrophosphoric acrd contains two P-H bonds.
Pyrophosphoric acid contains two P-H bonds.
Orthophosphoric acd can be prepared by dissolvng P4O10 in water.
Liquid X is used in bubble chamber to detect neutral mesons and gamma photons. Then, X is
He
Ne
Kr
Xe