Question 1

Which of the following is not a physical property used for the identification of minerals?

Accepted Answer

Atomic weight is an internal chemical and nuclear property of a mineral, not a physical property observed externally like color, streak, or hardness.

Question 2

What is the basic source of all minerals on the earth's crust?

Accepted Answer

Hot magma in the interior of the earth is the primary source from which all minerals in the earth's crust are originally derived.

Question 3

Which one of the following is the hardest mineral according to Mohs scale?

Accepted Answer

Diamond is assigned the highest value of 10 on Mohs scale of hardness, making it the hardest known naturally occurring mineral on Earth.

Question 4

Which of the following elements is most abundant in the earth's crust by weight?

Accepted Answer

Oxygen is the most abundant element in the earth's crust, accounting for approximately 46.6% of its total weight.

Question 5

Which of the following is a major constituent of granite?

Accepted Answer

Quartz is one of the primary, essential mineral components that make up the coarse-grained igneous rock known as granite.

Minerals and Rocks — NCERT Class 11 Geography Important Questions & Revision Notes