A silver iodide sol has been prepared by adding slight excess of KI solution to AgNO3 solution having the same concentration as that of KI solution. The silver iodide sol particles are
positively charged
negatively charged
neutral
partially positively and partially negatively charged
P4O10 on reacting with water does not form
tetrametaphosphoric acid
phosphorus acid
orthophosphoric acid
pyrophosphoric acid
B.
phosphorus acid
Phosphorus pentoxide reacts with water to form metaphosphoric acid which reacts with excess of water to give pyrophosphoric acid and orthophosphoric acid.
Chlorine reacts with carbon disulphide in presence of I2 catalyst to form
CHCl3
CHI3
CCl4
C2H5Cl
The electronic configuration of P in H3PO4
1s2 2s2, 2p6, 3s2 3p6
1s2, 2s2, 2p6 3s2
1s2, 2s2 2p6
1s2, 2s2, 2p6,3s2 3p3
The correct order of electron gain enthalpy with negative sign is
S <O <Cl < F
O <S < F < Cl
Cl <F <S <O
F <Cl <O < S
Which statement is false for white phosphorus (P4)?
It has six P-P single bonds
It has four P-P single bonds
It has four lone pairs of electrons
It has PPP angle 60°