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Periodic Classification of Elements — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10SciencePeriodic Classification of Elements1 Mark
Question
Which of the following elements will form an acidic oxide?
  1. An element with atomic number 7.
  2. An element with atomic number 3.
  3. An element with atomic number 12.
  4. An element with atomic number 19.
✓

Answer

  1. An element with atomic number 7.

Solution: Formation of acidic oxides is character of non-metals. Here element with atomic number 7 is a non-metal that is nitrogen. Rests of all are metals.

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