For the following reactions, equilibrium constans are given:
S(s) + O2(g) SO2(g); K1 = 1052
2S(s) + 3O2(g) SO3(g); K2 = 10129
The equilibrium constant for the reaction,
2SO2(s) + O2(g) SO3(g)
10181
1077
10154
1025
The correct statement about ICl5 and ICl is:
ICl5 is trigonal bipyramidal and ICl is tetrahedral
ICl5 is square pyramidal and ICl is tetrahedral
both are isostructural
ICl5 is square pyramidal and ICl is square planar.
Among the following molecules/ ions,
Which one is diamagnetic and has the shortest bond length?
C
N
O2
The strength of 11.2 volume solution of H2O2 is: [Given that molar mass of H=1 g mol–1 and O=16 g mol–1]
1.7%
34%
13.6%
3.4%
If p is the momentum of the fastest electron ejected from a metal surface after the irradiation of light having wavelength λ, then for 1.5 p momentum of the photoelectron, the wavelength of the light should be: (Assume kinetic energy of ejected photoelectron to be very high in comparison to work function) :
5 moles of an ideal gas at 100 K are allowed to undergo reversible compression till its temperature becomes 200 K. If CV = 28 J K–1 mol–1, calcuIate ΔU and ΔPV for this process. ( R= 8.0 JK-1 mol-1 )
ΔU = 14kJ; Δ(pV) = 18kJ
ΔU = 14kJ; Δ(pV) = 0.8J
ΔU = 14kJ; Δ(pV) = 4kJ
ΔU = 2.8kJ; Δ(pV) = o.8J
The maximum prescribed concentration of copper in drinking water is :
0.5 ppm
3 ppm
0.05 ppm
5 ppm
The covalent alkaline earth metal halide (X = Cl, Br, I) is :
MgX2
BeX2
CaX2
SrX2
B.
BeX2
Beryllium halides are covalent due to more polarizing power of small Be2+ ion with more charge density.