Home: Chemistry MCQs
Q. The average human body contains about _______ gram of Sodium Chloride.
(A) 190
(B) 210
(C) 230
(D) 250
The answer is: (D) 250 ☑
Q. The first period of elements consists of only
(A) hydrogen
(B) hydrogen and helium
(C) hydrogen and oxygen
(D) hydrogen and nitrogen
The answer is: (B) hydrogen and helium ☑
Q. The elements in any one group have similar
(A) atomic number
(B) mass number
(C) properties
(D) radioactivity
The answer is: (C) properties ☑
Q. The only nonmetal element that exists in liquid form is
(A) Bromine
(B) Mercury
(C) Calcium
(D) Platinum
The answer is: (A) Bromine ☑
Q. All metallic elements are solid at room temperature except for
(A) Lithium
(B) Mercury
(C) Calcium
(D) Platinum
The answer is: (B) Mercury ☑
Q. The chemical formula of aluminium oxide is
(A) Al3O2
(B) Al3O3
(C) Al2O2
(D) Al2O3
The answer is: (D) Al2O3 ☑