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 pH of a 0.001 M solution of HCl is
0
3
5
10
B.
3
pH of 0.001 M solution of HCl is 3.
[H+] = 0.001
pH = -log [H+]
= -log [10-3]
= 3
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