MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions for Chemistry

What will be the molar mass of solute if vapour pressure of pure benzene is 450 mm Hg when 1.5 g of non-volatile solute is added to 30 g of benzene?
(Vapour pressure of solution= 400 mm Hg, Atomic mass C = 12, H = 1)

Relative lowering in vapour pressure depends on _______.

Identify the correct statement from the following:

How many donor groups are present in diethylene triamine?

What is the number of moles of silver chloride precipitated when excess of aqueous silver nitrate is treated with [Co(NH₃)₄Cl₂]Cl?

Identify major product 'B' in the following reaction.

\[\ce{But-1-ene ->[HBr][Peroxide] A ->[AgCN][\Delta] B}\]

Identify 'B' in the following reaction.

\[\ce{2-Bromobutane ->[KOH alc.][\Delta] A ->[HI] B}\]

Identify the natural polymer from the following.

Which among the following polymers is a copolymer?

Which among the following polymers belongs to the class elastomers?

Which among the following polymer is used to make crockeries?

Identify reagent 'A' in the following conversion?

\[\ce{N-N Dimethyl aniline ->[A][273-278 K] 4-nitroso-N-N-dimethylaniline}\]

When propanamide is treated with bromine and alcoholic NaOH, it gives ______.

What is the product obtained in the following reaction?

Identify the enzyme 'X' in the following reaction.

\[\ce{H2O2_{(aq)} ->[X] H2O2_{(l)} + 1/2O2_{(g)}}\]

Which among the following polymers belongs to class thermoplastic polymers?

Which of the following properties is of thermoplastic polymer?

Copper crystallises with fee unit cell. If the radius of copper atom is 127.8 pm, calculate the density of copper? (At. mass: Cu = 63.55 g mol^-1)

38.4 g of unknown substance (molar mass 384 g mol^-1) and 116 g of acetone is used to prepare a solution at 313 K. If vapour pressure of pure acetone (molar mass 58 g mol^-1) is 0.842 atmosphere, what is the vapour pressure of solution?

Which of the following amines liberates nitrogen gas when treated with nitrous acid?