The solubility of Al(OH)3 is 'S' mol L-1. The solubility product will be
S2
S3
27 S4
27 S3
C.
27 S4
Aluminium hydroxide dissociates according to the equations
Al(OH)3 (aq) Al(OH)3 (aq)
Al3+ (aq) + 3OH-
Let the solubility of Al(OH)3 = S mol L-1
Ksp = [Al3+] [OH-]3
= (s) (3s)3 = 27 s4
Hence, Ksp = 27 s4
When 1 M H2SO4 is completely neutralized by NaOH, the heat liberated is 114.64 kJ. What is the enthalpy of neutralization?
+ 114.64 kJ
-114.64 kJ
-57.32 kJ
+ 57.32 kJ
A particle 'A' moving with a certain velocity has the de-Broglie wavelength 1 Å. For a particle 'B' with mass 25% of 'A' and velocity 75% of 'A'. The de-Broglie wave length of 'B' will be
3 Å
5.33 Å
6.88 Å
0.68 Å
The reaction,
3ClO- (aq) → ClO (aq) + 2Cl- (aq) is an example of
oxidation reaction
reduction reaction
disproportionation reaction
decomposition reaction
The geometrical and optical isomers of complex [Pt(NH3)(Br)(Cl)(Py)] respectively
2, 2
0, 3
2, 1
3, 0
One of the isomer of the 5th member of alkyne series is optically active. It is
4-methyl pent-2-yne
3-methyl pent-1-yne
4-methyl pent-1-yne
3, 3-dimethyl but-1-yne
Schiff's nitrometre is filled with
mercury
water over mercury seal
KOH solution over mercury seal
toulene over mercury seal