Question

Which best defines cohesion? A. Cohesion is caused by polar water molecules attracting each other. B. Cohesion is caused by polar water molecules repelling each other. C. Cohesion is caused by polar water molecules repelling and not mixing with non–polar molecules.

Answer 1

YOUR ANSWER WOULD BE A 

Answer 2

Option A, Cohesion is caused by polar water molecules attracting each other

Step-by-step explanation:

Cohesion leads to attraction of molecules towards each other. Water molecules being polar in nature exhibit strong cohesive force.

Due to its polar nature, water molecule align itself in a way that its one end becomes positive with H+ ion and the other end becomes negative with OH- ion.

Two water molecules get attracted towards each other through the formation of hydrogen bond between them, due to which high cohesion arises.

Hence, option A is the correct answer.