) The color of the litmus paper into tell us that the solution of the compound is in nature.

The color of the blue litmus paper turning into red tells us that the solution of the compound is acidic in nature.

The color of the red litmus paper turning into blue tells us that the solution of the compound is basic in nature.

Explanation:

Litmus paper is paper treated with a mixture of natural dyes obtained from lichens. This makes the paper purple in neutral conditions (pH = 7), red in acidic conditions (pH < 7), and blue in basic (alkaline) conditions (pH > 7). It is used to determine whether a solution is acidic or basic, but can't measure the pH.

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.