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GATE 2022 MT – Question 20

Materials Science and Non-Metallic Materials · Crystal structures and bonding · 1 mark · Multiple choice

Match the nature of bonding to the material.

Column I:

P. Ionic

Q. Covalent

R. Metallic

S. Secondary

Column II:

1. Diamond

2. Silver

3. NaCl

4. Solid argon

  1. P – 4, Q – 3, R – 2, S – 1
  2. P – 2, Q – 1, R – 3, S – 4
  3. P – 3, Q – 1, R – 4, S – 2
  4. P – 3, Q – 1, R – 2, S – 4

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Correct answer: (D) P – 3, Q – 1, R – 2, S – 4

Explanation

NaCl has ionic bonding, diamond a covalent network, silver metallic bonding and solid argon weak secondary dispersion forces.

Thus P-3,Q-1,R-2,S-4, **D**.