NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Water is attracted to the sides of a glass tube due to which of its properties?
A
Cohesion
B
Adhesion
C
Heat Capacity
D
Universal Solvency
Explanation: 

Detailed explanation-1: -This is because the water molecules are attracted to the charged glass walls of the capillary more than they are to each other and therefore adhere to it. This type of adhesion is called capillary action.

Detailed explanation-2: -Adhesion is responsible for a meniscus and this has to do in part with water’s fairly high surface tension. Water molecules are attracted to the molecules in the wall of the glass beaker.

Detailed explanation-3: -Water molecules are bent so the hydrogen atoms are to one side of the oxygen atom. and when it come to molecules opposites attract. A bond forms between the negative side of one water molecule and the positive side of another. At that is what gives water its stickiness.

Detailed explanation-4: -Adhesion occurs because of the polarity of water. Water molecules have an uneven sharing of electrons due to covalent bonding. This creates a negative and positive end of each water molecule. The result is that water is attracted to other molecules with opposite charges.

Detailed explanation-5: -in science, the force that attracts molecules of different substances to each other. Water clinging to the sides of a glass tube is an example of adhesion.

There is 1 question to complete.