What is aquous tension.

What is sarface tension? What is its unit?

What is surface tension of a liquid ? Show that the surface tension of a liquid is numerically equal to the sueface energy per unit area.

A-stone of mass 0.25 kg tied to the end of a string is whirled round in a circle of radius 1.5 m with a speed of 40 rev./min in a horizontal plane. What is the tension in the string? What is the maximum speed with which the stone can be whirled around if the string can withstand a maximum tension of 200. N?

Two bodies of masses 10 kg and 20 kg respectively kept on a smooth, horizontal surface are tied to the ends of a light string. A horizontal force F = 600 N is applied to (i) A, (ii) B along the direction of string. What is the tension in the string in each case?

Explain the following: Cu(I) ion is not known is aquous solution

What is meant by disproporation'. Give two examples of disproporationation reaction in aquous solution.

What will happen when: Alumina reacts with aquous solution of sodium hydroxide?

Which of the following undergo disproporationation in aquous solution?

Explain the following: Co (II) is stable in aquous solution but in the presence of the complexing agents, it is easily oxidised.

Discuss the various factors which affect the decreasing oxidising ability of the halogens in aquous soln.