JEE Question

Resonance structures of a molecule should have.
  • a)
    Identical arrangement of atoms
  • b)
    Nearly the same energy content
  • c)
    The same number of paired electrons
  • d)
    Identical bonding
Correct answer is option 'A,C'. Can you explain this answer?

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Answers

Rakshit Dayma
Jul 18, 2018
Resonating structures must have identical arrangements of atoms, nearly same energy content and same number of unpaired electrons .

Prince Kumar
Jul 19, 2018
AC in resonating stracture movememnt of atom not alowed and sigma bond scaltan remais unchanged

Read the passage given below and answer the following questions:
The properties of the solutions which depend only on the number of solute
particles but not on the nature of the solute are called colligative
properties. Relative lowering in vapour pressure is also an example
ofcolligative properties.
For an experiment, sugar solution is prepared for which lowering in
vapour pressure was found to be 0.061 mm of Hg. (Vapour pressure of
water at 200C is 17.5 mm of Hg)
The following questions are multiple choice questions. Choose the
most appropriate answer:
(i) Relative lowering of vapour pressure for the given solution is
(a) 0.00348
(b) 0.061
(c) 0.122
(d) 1.75
(ii) The vapour pressure (mm of Hg) of solution will be
(a) 17.5
(b) 0.61
(c) 17.439
(d) 0.00348
(iii) Mole fraction of sugar in the solution is
(a) 0.00348
(b) 0.9965
(c) 0.061
(d) 1.75
or
If weight of sugar taken is 5 g in 108 g of w

Resonating structures must have identical arrangements of atoms, nearly same energy content and same number of unpaired electrons .

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Resonating structures must have identical arrangements of atoms, nearly same energy content and same number of unpaired electrons .