The isomersim exhibited by following compounds [Co(NH3)6][Cr(CN)6] and [Cr(NH3)6(CN)6] is
ionisation isomerism
polymerisation isomersion
Linkage isomersim
Cooridination isomerism
For the reaction, 2SO2 + O2(excess) → 2SO3 the order of reaction with respect to O2 is
two
three
zero
one
Which of the following is correct for a first order reaction?
t1/2 ∝ a°
t1/2 ∝ a2
t1/2 ∝ a
t1/2 ∝ 1/a
A.
t1/2 ∝ a°
The half-life period of a radioactive element is 30 days. After 90 days, which of the following quantity will be left?
1/2
1/6
1/8
1/4
In the manufacture of ammonia by Haber's process, N2 (g) + 3H2(g) 2NH3(g) + 92.3kJ. which of the following conditions is unfavourable?
reducing the temperature
Removing ammonia as it is formed
Increasing the temperature
Increasing the pressure
What will happen if a cell is placed into 0.4% (mass/volume) NaCl solution?
There will be no change in cell volume
Cell will dissolve
cell will swell
cell will shrink
It a compound is formed by X, Y and Z atoms and Z is present on the comers, Y is present tetrahedral voids and X atom in octahedral voids, which of the following will be the molecular formula of the compound?
X2Y4Z
XYZ4
XYZ
X2ZY