Solubility product of PbCl2 at 298 K is 1 x 10-6. At this temperature solubility of PbCl2 in mol/L is
(1 x 10-6)1/2
(1 x 10-6)1/3
(0.25 x 10-6)1/3
(2.5 x 10-6)1/2
The set representing the correct order for first ionisation potential is
K > Na > Li
Be > Mg > Ca
B > C > N
Ge > Si > C
When dihydroxy acetone reacts with HIO4, the product is/ are
HCHO
HCOOH
HCHO and HCOOH
HCHO and CO2
Bleaching powder is obtained by treating Cl2 with
Ca(OH)2
CaO
CaCO3
CaCl2
A.
Ca(OH)2
Bleaching powder is obtained by treating Cl2 with lime water.
Ca(OH)2 + Cl2 CaOCl2 + H2O
The number of moles of oxygen obtained by the electrolytic decomposition of 108 g water is
2.5
3
5
7.5