What is the difference between molecular mass and molar mass ? Calculate the molecular mass and molar mass for carbon monoxide.

Describe the Aufbau principle

Justify that the fifth period of the periodic table should have 18 elements on the basis of quantum numbers.

What is water-gas shift reaction?

Give the systematic names for the following
Milk of magnesia

Give suitable explanation for the following facts about gases.
Gases don't settle at the bottom of a container.

State the various statements of second law of thermodynamics.

The equilibrium concentrations of NH₃, N₂ and H₂ are 1.8 x 10^-2 M, 1.2 x 10^-2 M and 3 x 10^-2 M respectively. Calculate the equilibrium constant for the formation of NH₃ from N₂ and H₂. [Hint: M= mol lit^-1]

Vapour pressure of a pure liquid A is 10.0 torr at 27°C. The vapour pressure is lowered to 9.0 torr on dissolving one gram of B in 20 g of A. If the molar mass of A is 200 then calculate the molar mass of B.

0.40 g of an iodo-substituted organic compound gave 0.235 g of AgI by carius method. Calculate the percentage of iodine in the compound. (Ag = 108, I = 127)

Two isomers (A) and (B) have the same molecular formula C₂H₄Cl₂. Compound (A) reacts with aqueous KOH gives compound (C) of molecular formula C₂H₄O. Compound (B) reacts with aqueous KOH gives compound(D) of molecular formula C₂H₆O₂. Identify (A), (B), (C) and (D).

Explain how oxygen deficiency is caused by carbon monoxide in our blood ? Give its effect