pBlock ElementsII - Result Question 15

####15. Which of the following is the wrong statement? (2013 Main) (a) ONCl and ONOare not isoelectronic

(b) O3 molecule is bent

(c) Ozone is violet-black in solid state

(d) Ozone is diamagnetic gas

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Solution:

  1. (a) ONCl=8+7+17=32e

ONO=8+7+8+1=24e(correct)

(b)

Central O-atom is sp2-hybridised with 1 lone pair, so bent shape (correct).

(c) In solid state, ozone is violet-black. Ozone does not exist in solid state, thus incorrect.

(d) O3 has no unpaired electrons, so diamagnetic (correct). Hence, (c) is the correct.



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