QQuestion
Which of the following compounds has no existence as a separate and distinct molecule?
(a) H₂S
(b) CHCl₃
(c) NO₂
(d) NaCl
✓Answer
(d) NaCl
Explanation
Sodium chloride (NaCl) is an ionic compound. It does not exist as individual molecules; instead, it consists of a three-dimensional ionic crystal lattice made up of Na⁺ and Cl⁻ ions held together by strong electrostatic forces.
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