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BITSAT2015ChemistryClassification of Elements and Periodicity in PropertiesActual

Which of the following is a strong base?

Options

  1. APH ₃
  2. BAsH ₃
  3. CNH ₃
  4. DSbH ₃

Correct answer

C. NH ₃

Step-by-step solution

Order of basic character is NH ₃> PH ₃> AsH ₃> SbH ₃ . Basic-character decreases down the group from N to Bi due to increase in atomic size.

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