CUET (UG) entrance exam Question Bank Solutions

Calculate the molal elevation constant for water given that 0.2 molal solution of non-volatile and non-electrolyte solute increases the boiling point of water by 0.104 K.

The boiling point to a solution containing 50 gm of a non-volatile solute in 1 kg of solvent is 0.5° higher than that of pure solvent. Determine the molecular mass of the solute (give molecular mass of solvent) = 78 g mol^–1 and kb for solvent = 2.53 km^–1)

Which of the following is not considered as organometallic compound?

The non-protein us substance which certain zyme racier for their activity are caused:-

The function of enzymes in the living system is to

In comparison to a 0.01 m solution of glucose, the depression in freezing point of a 0.01 m MgCl₂ solution is ______.

Ozone in the stratosphere is depleted by:

Latent heat of water (ice) is 1436.3 cal per mol. What will be molal freezing point depression constant of water (R = 2 cal/degree/mol)?

Maximum number of H-bonds that can be formed by a water molecule is

The appearance of colour in solid alkali metal halides is generally due to ______.

On doping Ge metal with a little of In (indium), we get:

The non-stoichiometric compound Fe₀ 940 is formed when x% of Fe²⁺ ions are replaced by as many `2/3` Fe³⁺ ions. The value of x is

If NaCl is doped with 10^–3 mol % of SrCl₂ calculate the concentration of cation vacancies.

Calculate freezing point depression expected for 0.0711 m aqueous solution of Na₂SO₄. If this solution actually freezes at – 0.320°C, what will be the value of van't Hoff factor? (kg for water = 108b°C mol^–1)

When lead storage battery is charged:-

Best way to protect rusting of iron is by.

Best way to protect rusting of iron is by-

At a given temperature, osmotic pressure of a concentrated solution of a substance ______.

In isotonic solutions:

(i) Solute and solvent both are same.

(ii) Osmotic pressure is same.

(iii) Solute and solvent may or may not be same.

(iv) Solute is always same solvent may be different.

In order to distinguish between C₂H₅NHz and C₆H₅NHz, which of the following reagents is useful?