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

Which of the following changes will cause increase in vapour pressure of 1 molal aqueous KI solution at same temperature?

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 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.

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

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?

What is the standard potential of cell, Ni | Ni²⁺ (1M) || Cu²⁺ (1 M) | Cu?

If E°Cu = 0.337 V and E°Ni = - 0.236 V.

What is the major product obtained in the sulphonation of chlorobenzene with concentrated sulphuric acid?

What type of isomerism is present between (I) [Cr(H₂O)₆]Cl₃ and (II) [Cr(H₂O)₅Cl]Cl₂.H₂O?

What is the product obtained when ethyl amine is heated with large excess of ethyl iodide?

What is the percentage of void space in bcc type of in unit cell?