Question

Match List I with List II.

• A. \[ \begin{array}{cccc} A & B & C & D \\ 4 & 3 & 2 & 1 \end{array} \]
• B. \[ \begin{array}{cccc} A & B & C & D \\ 4 & 3 & 1 & 2 \end{array} \]
• C. \[ \begin{array}{cccc} A & B & C & D \\ 3 & 4 & 2 & 1 \end{array} \]
• D. \[ \begin{array}{cccc} A & B & C & D \\ 3 & 4 & 1 & 2 \end{array} \]

Hint:

Remember the common examples of solids: \[ \text{Metallic} \rightarrow Cu,\ Fe,\ Ag \] \[ \text{Ionic} \rightarrow NaCl,\ KBr \] \[ \text{Molecular} \rightarrow Ice,\ Dry\ Ice \] \[ \text{Covalent} \rightarrow Diamond,\ SiO_2 \] These examples are frequently used in matching-type questions.

Answer 1

The Correct Option is A

Step 1: Match Metallic Solid.
Metallic solids consist of metal atoms held together by metallic bonding and a sea of delocalized electrons. Copper (\(Cu\)) is a typical metallic solid. Therefore, \[ A \rightarrow 4 \]

Step 2: Match Ionic Solid.
Ionic solids are composed of oppositely charged ions held together by strong electrostatic forces. Sodium chloride (\(NaCl\)) is a classic ionic solid. Therefore, \[ B \rightarrow 3 \]

Step 3: Match Molecular Solid.
Molecular solids contain molecules held together by intermolecular forces such as hydrogen bonding, dipole-dipole interactions, or van der Waals forces. Ice (\(H_2O\)) is a molecular solid held together by hydrogen bonding. Therefore, \[ C \rightarrow 2 \]

Step 4: Match Covalent Solid.
Covalent solids consist of atoms connected by a continuous network of covalent bonds. Diamond is a giant covalent network solid. Therefore, \[ D \rightarrow 1 \]

Step 5: Final matching and conclusion.
Thus, the correct matching is \[ \begin{array}{cccc} A & B & C & D \\ 4 & 3 & 2 & 1 \end{array} \] Hence, \[ \boxed{ A-4,\; B-3,\; C-2,\; D-1 } \] Therefore, option (1) is correct.