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JEE Main levelOne or more correct optionsDifficulty 2 of 3pn010

Which of the following statements about the elements of group 15 are correct?

  1. AThe basic character of the hydrides increases from to .
  2. BAll the hydrides (M = N to Bi) have a pyramidal shape.
  3. CBismuth is the only member of the group that is a typical metal.
  4. DNitrogen is a gas at room temperature, while the other members are solids.

Answer: B, C, D

N is a gas, P, As, Sb and Bi are solids; Bi is the only clear metal (As and Sb are metalloids); all hydrides are pyramidal with a lone pair on M. The basicity of decreases down the group ( is the strongest base), so the last statement is false. Correct: A, B, C.
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