Multiple choice

Which of the following matches is/are not correct?

  1. Order of stability: O2+ > O2 > O2- 2. Order of bond angle: H2S > NH3 > BF3 > SiH4 3. Order of dipole moment: NH3 > PH3 > AsH3 > SbH3 4. Order of covalent character: LiCl > NaCl > KCl > RbCl

  1. Only 1

  2. Only 2

  3. Only 3

  4. Both 1 and 3

  5. Both 2 and 4
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

H2S (bent with bond angle 98o) NH3 (pyramidal with bond angle 105o) SiH4 (tetrahedral with bond angle 109.5o) BF3 (trigonal planar with bond angle 120o) Correct order is BF3 > SiH4 > NH3 > H2S.

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