2611: Assertion (A):
A diamond sparkles more than a glass imitation cut to the same shape.
Reason (R):
The refractive index of diamond is less than that of glass.
In the context of the above two statements, which one of the following is correct ?
(a) Both A and R are true, and R is the correct explanation of A
(b) Both A and R are true, but R is not a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
2612: Which one of the following statements is not correct?
(a) The boiling point of an aqueous solution is higher than that of pure water
(b) Addition of solutes to a solution causes an increase in its water potential
(c) The vapour pressure of the water in a solution is lower than that of pure water
(d) When a solution is separated from water by a semi permeable membrane, water movement can be prevented by applying pressure to the solution
2613: The process of retting in jute is
(a) Purely physical
(b) Purely chemical
(c) Microbiological
(d) Physico-chemical
2614: Assertion (A):
Scientists can cut apart and paste together DNA molecules at will, regardless of the source of the molecules.
Reason (R):
DNA fragments can be manipulated using restriction endonucleases and DNA ligases.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is NOT a correct explanation of A
(c) A is true but R is false
(d) A is fasle but R is true
2615: The greatest hallmark of personal liberty is:
(a) Mandamus
(b) Certiorari
(c) Quo Warranto
(d) Habeas Corpus