Question

Match the following:
List I List II
(A) Felspar (I) \([Ag_3Sb_3]\)
(B) Asbestos (II) \(Al_2O_3\cdot H_2O\)
(C) Pyrargyrite (III) \(MgSO_4\cdot H_2O\)
(D) Diaspore (IV) \(KAlSi_3O_8\)
(V) \(CaMg_3(SiO_3)_4\)

• (A) V \quad (B) II \quad (C) III \quad (D) I
• (A) IV \quad (B) V \quad (C) I \quad (D) II
• (A) I \quad (B) III \quad (C) II \quad (D) IV
• (A) II \quad (B) IV \quad (C) V \quad (D) I

Hint:

Mineral identification questions are best solved by memorizing common mineral formulas like felspar \(KAlSi_3O_8\) and diaspore \(Al_2O_3\cdot H_2O\).

Answer 1

The Correct Option is B

Step 1: Identify chemical formula of each mineral.
Felspar is a potassium aluminosilicate:
\[ KAlSi_3O_8 \Rightarrow (IV) \]
Asbestos is a silicate mineral like hornblende group:
\[ CaMg_3(SiO_3)_4 \Rightarrow (V) \]
Pyrargyrite is silver antimony sulphide:
\[ Ag_3SbS_3 \Rightarrow (I) \]
Diaspore is hydrated alumina:
\[ Al_2O_3\cdot H_2O \Rightarrow (II) \]
Step 2: Write final matching.
\[ (A)\to (IV),\; (B)\to (V),\; (C)\to (I),\; (D)\to (II) \]
Final Answer:
\[ \boxed{\text{Option (B)}} \]