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- Subject
- Periodic Classificationchemistry-mcqs › periodic-classification
- Published
- 18 Mar 2019
- Last updated
- 28 May 2026
Explanation
Option B is correct because nitrogen and phosphorus both belong to Group 15 of the periodic table. The other pairs contain elements from different groups.
More Periodic Classification MCQs
Practice related questions from the same subject.
- 1.Which of the following statements about metals is false?
- 2.Considering atomic sizes, which of the following comparisons is accurate?
- 3.Why does iodine exist in a solid state under standard conditions?
- 4.What term is used for halides where halogen atoms serve as bridges connecting two atoms of another element?
- 5.What does the oxidation state of an atom indicate?
- 6.How does the metallic character of alkali metals change as you move down the group?
- 7.What is the nature of the energy change when a second electron is added to a singly charged negative ion?
- 8.Which factors influence the ionization energy of an atom?
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