Solutions Mock Test (Chemistry) MHT CET 2022

Sugar dissolved in water is a ____ type of solution.

The solubility of a gas in water increases with _______

At 300k , when a solute is added to a solvent its vapour pressure over mercury reduces from 50mm to 45mm . The  value of mole fraction solute will be______

The boiling point of 0.15 molal aqueous solution of an unknown solute is 373.23 k at 1 atm. The molal elevation constant of water is ________ K kg/mol.

At 100ºC the vapour pressure of a solution of 6.5 g of a solute in 100 g water is 732 mm. If K_b = 0.52, the boiling point of this solution will be:

What is the molality of a solution containing 200 mg of urea (molar mass 60 g mol^–1) dissolved in 40 g of water ?

Solubility of which among the following substances in water increases slightly with rise in temperature?

p_A and p_B are the vapour pressure of pure liquid components, A and B, respectively of an ideal binary solution. If x_A represents the mole fraction of component A, the total pressure of the solution will be

Dissolving 120 g of urea (mol. wt. 60) in 1000 g of water gave a solution of density 1.15 g/mL. The molarity of the solution is

A solution of two liquids boils at a temperature more than the boiling point of either of them. Hence, the binary solution shows ______.

A 5.2 molal aqueous solution of methyl alcohol, CH₃OH is supplied. What is the mole fraction of methyl alcohol in the solution?

18 g of glucose (C₆H₁₂O₆) is added to 178.2 g of water. The vapour pressure of water for this aqueous solution at 100°C is

The vapour pressure of acetone at 20ºC is 180 torr . When 1.2 g of an non-volatile substance was dissolved in 100g of acetone at 20ºC, ist vapor pressure was 184 torr . The molar mass (g/mol) of the substance is ______

A 5% solution of cane sugar (molar mass 342 is isotonic with 1% of a solution of an unknown solute. The molar mass of unknown solute in g/mol is

An aqueous solution is 1.00 molal in KI. Which change will cause the vapour pressure of the solution to increase?

What is the osmotic pressure of a 0.0020 mol dm^–3 sucrose (C₁₂H₂₂O₁₁) solution at 20°C?

(Molar gas constant, R = 8.314 JK^–1 mol^–1, 1 dm³ = 0.001 m³?

6.02 × 10²⁰ molecules of urea are present in 100 mL of its solution. The concentration of solution is

10 litre solution of urea contains 240 g urea. The active mass of urea will be

The number of moles of a solute in its solution is 20 and total number of moles are 80. The mole fraction of solute is

5.0 g of sodium hydroxide (molar mass 40 g m ) is dissolved in little quantity of water and the solution is diluted upto 100 mL. What is the molarity of the resulting solution?

What is the minimum velocity with which a body of mass m must enter a vertical loop of radius R so that it can be complete the loop?

A uniform cylinder has length ‘L’ and radius ‘R’ . The moment of inertia of the cylinder about an axis passing through its centre and perpendicular to its length is equal to moment of inertia of the same cylinder about an axis passing through its centre and perpendicular to its circular face. The relation between ‘L’ and ‘R’ is

The radius of gyration of a uniform rod of length l about an axis passing through a point l/4 away from the centre of the rod and perpendicular to to it is

A rope is wound around a hollow cylinder of mass 3kg and radius 40cm . What is angular acceleration of cylinder if the rope is pulled with force of 30N?

A disc has mass ‘M’ and radius ‘R’ . How much tangential force should be applied to the rim of the disc so as to rotate with angular velocity ω in time t ?

A wheel of moment of inertia 2kgm² is rotating about an axis passing through centre and perpendicular to its plane at a speed s60rad/s. Due to friction, it comes to rest in 5 minutes. The angular momentum of the wheel three minutes before it stops rotating is

When ‘W’ joule of work done on a flywheel . its frequency of rotation increases from n1 Hz to n2 Hz . The M.I of flywheel about its axis of rotation is given by

A solid cylinder of mass 2kg and radius 4cm is rotating about its axis at the rate of 3 rpm . The torque required to stop after 2π revolutions is

A particle is moving in a circular path of radius a under the action of an attractive potential  U = -k/2r² . Its total energy is

For increasing the angular velocity of a object by 10%, the kinetic energy has to be increased by