Question

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Granite is one of the toughest stones used for building construction.
Reason (R) : Granite is a type of sedimentary rocks which is formed due to seasonal variation sedimentation takes place in layers.
In the light of the above statements, choose the most appropriate answer from the options given below :

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
• B. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
• C. (A) is correct but (R) is not correct
• D. (A) is not correct but (R) is correct

Hint:

Rock classification:
• Granite → Igneous rock
• Sandstone → Sedimentary rock
• Marble → Metamorphic rock Granite is valued in construction for its:
• Strength
• Durability
• Weather resistance

Answer 1

The Correct Option is C

Concept: Rocks used in construction are broadly classified into:
• Igneous rocks
• Sedimentary rocks
• Metamorphic rocks Granite is an igneous rock formed by the slow cooling of magma beneath the Earth's surface. It is known for:
• High strength
• Toughness
• Durability

Step 1: Analyze Assertion (A).
Granite is widely used in construction because it is extremely hard and durable. Applications include:
• Flooring
• Cladding
• Structural works
• Monuments Hence, Assertion (A) is correct.

Step 2: Analyze Reason (R).
The statement says granite is a sedimentary rock formed in layers. This is incorrect because:
• Granite is an igneous rock
• Sedimentary rocks form by deposition in layers Hence, Reason (R) is incorrect.

Step 3: Choose the correct option.
Assertion (A) is true, but Reason (R) is false. Therefore, the correct answer is: \[ {\text{(C) (A) is correct but (R) is not correct}} \]