From the given sets of quantum numbers, the one that is inconsistent with the theory is
n =3; l =2; m = -3; s = +
n = 4; l = 3; m = 3; s = +
n = 2; l = 1; m = 0; s = -
n = 4; l = 3; m = 2; s = +
Pick out the isoelectronic structures from the following
I and II
I and IV
I and III
II, III and IV
1f 20 mL of 0.4 N NaOH solution completely neutralises 40 mL of a dibasic acid, the molarity of the acid solution is
0.1 M
0.2 M
0.3 M
0.4 M
In the following particle
3Li6 + ? → 2He4 + 1H3
the missing particle is
electron
neutron
proton
deuteron
Consider the two gaseous equilibria involving SO2 and the corresponding equilibrium constants at 298 K
SO2 (g) + O2 (g) SO3 (g); K1
2SO3 (g) 2SO2 (g) + O2 (g); K2
The values of the equilibrium constants are related by
K2 = K1
K2 = K
K2 =
K2 =
C.
K2 =
For reaction,
SO2 (g) + SO3 (g)
K1 = ...(i)
For reaction,
2SO3 2SO2(g) + O2(g)
From equation (i) and (ii)
K1 . = 1
. K2 = 1
K2 =
For the reaction,
A + B C + D,
the initial concentrations of A and B are equal. The equilibrium concentration of C is two times the equilibrium concentration of A. The equilibrium constant is
4
9