GENERAL KNOWLEDGE

GK

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The most abundant element in the earth’s crust is?
A
Silicon
B
Oxygen
C
Nitrogen
D
Aluminium
Explanation: 

Detailed explanation-1: -Oxygen is by far the most abundant element in the Earth’s crust, making up 46% of mass-coming up just short of half of the total. Oxygen is a highly reactive element that combines with other elements, forming oxides.

Detailed explanation-2: -Look at the properties of Oxygen and Silicon-the two most abundant elements in the Earth’s crust-by clicking on their symbols on the Periodic Table.

Detailed explanation-3: -The most abundant element in the earth’s crust is oxygen (46. 1%). The chemical formula of oxygen (dioxygen) is O2.

There is 1 question to complete.