Question

Match List-I with List-II

List-I (Parent Rock)	List-II (Metamorphic Rock)
(A) Conglomerate	(I) Graphite
(B) Slate	(II) Phyllite
(C) Coal	(III) Gneiss
(D) Sandstone	(IV) Quartzite

Choose the correct answer from the options given below.

• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (III), (B) - (II), (C) - (I), (D) - (IV)
• (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
• (A) - (III), (B) - (IV), (C) - (I), (D) - (II)

Hint:

Remember that Sandstone turns into Quartzite, and Limestone turns into Marble. These are two of the most frequently asked metamorphic pairings.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Metamorphic rocks form when pre-existing parent rocks (igneous, sedimentary, or metamorphic) undergo structural and mineralogical changes due to high heat and pressure.

Step 2: Detailed Explanation:
Let us match each parent rock to its metamorphic product:
- (A) Conglomerate is a coarse-grained sedimentary rock that can metamorphose into metaconglomerate or, under high-grade metamorphism, Gneiss, so (A) matches with (III).
- (B) Slate is a low-grade metamorphic rock that, under further heat and pressure, metamorphoses into Phyllite, so (B) matches with (II).
- (C) Coal is a carbonaceous sedimentary rock that metamorphoses into pure crystalline carbon, Graphite, so (C) matches with (I).
- (D) Sandstone is a quartz-rich sedimentary rock that recrystallizes to form Quartzite, so (D) matches with (IV).
This gives the match combination: (A)-(III), (B)-(II), (C)-(I), (D)-(IV).

Step 3: Final Answer:
Hence, the correct option is (B).