Multiple choice

What is the similarity between sodium and chlorine?

  1. Both are alkali metals.

  2. Both are halogens.

  3. Both have valency + 1.

  4. Both have 7 valence electrons.

  5. Both form acid on reacting with water.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Yes, it is correct. Valency of both the elements is +1. Sodium on giving one electron, attains stable noble gas structure; 2, 8. If chlorine takes one electron, attains stable noble gas structure; 2, 8, 8.

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