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
The number of moles of oxygen obtained by the electrolytic decomposition of 108 g water is
2.5
3
5
7.5
B.
3
2H2O 2H2 + O2
2mol 1mol
2 x 18 = 36 gm
Since, 36 gm of H2O produce 1 mole of oxygen.
108 gm of water will produce oxygen = = 3 mol