MCQ practice · SSC Chemistry Board questions · Chapter 5: Chemical Bond
The compound XY₃
- i. follows the duet rule
- ii. forms an ionic bond
- iii. has a low melting point
Think it through first, then pick an option.
- a ii
- b i and ii
- c i and iii
- d i, ii and iii
Answer and explanation
Correct answer: c i and iii
The compound is NH₃: every atom holds electron pairs (duet rule), and being covalent it has a low melting point.
Why the other options are wrong
- a ii: i and iii are true too, and ii is false (it is covalent).
- b i and ii: ii is false: N and H are nonmetals, so the bond is covalent.
- d i, ii and iii: ii is false: NH₃ is not ionic. The answer the book supports is i and iii.
Your account is open, so all 30,000+ MCQs from every chapter are yours. Start practising SSC Chemistry →
Want to keep going?
A free account carries you on to the next questions and opens 30,000+ MCQs from every chapter. Join before launch and Chirkut bundles are 60% off.
The ones you missed, worth one more look