By signing in you confirm you are 18 or older, or have your parent’s or guardian’s consent.

NDA 2 2024 GAT, question 59

Topic: Chemistry

Q59

Which of the following anions has a valency of −3-3 ?

  1. (a) NitrideCorrect answer
  2. (b) Nitrate
  3. (c) Sulphide
  4. (d) Sulphate

Solution.

Answer: (a) Nitride

  1. Nitride is N³⁻.
  2. Nitrate is NO₃⁻, while sulphide and sulphate have charge 2−.
  3. Strictly, −3 is the ionic charge and the valency magnitude is 3.