Which specie has unpaired electrons in antibonding molecular orbitals_______________?

A. O2+2
B. N2-2
C. B2
D. O2-2

For a given process the heat changes at constant pressure (qp) and at constant volume (qv) are related to each other as___________________?

A. Qp = qv
B. Qp < qv
C. Qp > qv
D. Qp = qv / 2

Solubility product of AgCl is 2.0 x 10-10 mol2 dm-6. Maximum Concentration of Ag+1 ions in the solution is__________________?

A. 2.0 x 10-10 mol dm-3
B. 1.414 x 10-5 mol dm-3
C. 1.0 x 10-10 mol dm-3
D. 1.0 x 10-5 mol dm-3

Which of the following solution has the highest boiling point ?

A. 5.85% nacl solution
B. 18.0 % glucose solution
C. 6.0 % urea solution
D. All have same boiling point

Which of the following can be used in laptops ?

A. Silver oxide battery
B. Fuel cell
C. Nickel cadmium cell
D. Lead accumulator

Which is the unit of (K) rate constant for zero order reaction ?

A. S-1
B. Mol dm-3 s-1
C. Mol-1 dm3 s-1
D. Mol-2 dm6 s-1

Which is carnalite________________?

A. Kci
B. Naci
C. Kci mgcl2 6h2o
D. Na2co3. 10h2o

The most reactive allotropic form of phosphorus is________________?

A. White
B. Redox potential
C. Black
D. Violet

Which molecule has the highest bond energy among the halogens_________________?

A. Fluorine
B. Chlorine
C. Iodine
D. Bromine

The most paramagnetic element is____________________?

A. Iron
B. Cobalt
C. Chromium
D. Manganese