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The softest rock in the list is — Answer & Solution | Civexa

Engineering Geology · Structural Geology

Structural Geology MCQ with answer and solution

The softest rock in the list is

Solution

Concept

Mohs scale

Step-by-step solution

1. Mohs hardness: talc 1, marble about 3, quartz 7, diamond 10.

Explanation

Talc is the softest mineral.

Why the other options are wrong

The others are harder.

Shortcut

Talc = 1.

Correct answer: C) Talc

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