Chemistry Quiz with Answers - 2

Question: 6

Which of the following element has the highest ionisation energy?

(A) Potassium

(B) Caesium

(C) Sodium

(D) Lithium

Question: 7

Which one of the following is correct? Setting of Plaster of Paris is

(A) Combination with atmospheric

(B) Hydration leading to another hydrate

(C) Oxidation with atmospheric oxygen

(D) Dehydration

Question: 8

Usually doctors recommend the foodstuffs which are prepared in the oil with comparison to the vegetable ghee because

(A) Oil has unsaturated fats

(B) Oil has saturated fats

(C) To store the oil is convenient

(D) Oil is cheeper

Question: 9

Contact lenses are made from

(A) Teflon

(B) Lucite

(C) Polystyrene

(D) Poly vinyl chloride

Question: 10

Water is a compound because

(A) It exists as a solid, a liquid or a gas

(B) It contains hydrogen and oxygen

(C) It contains two different elements joined by chemical bonds

(D) It cannot be split up into simpler substances by chemical means