Important Questions of Chemical Bonding and Molecular Structure Chemistry | Zigya

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461.

The hybridisation state of carbon in fullerene is

  • sp

  • sp2

  • sp3

  • sp3d


462.

A fruity smell is produced by the reaction of C2H5OH with

  • CH3COCH3

  • CH3COOH

  • PCl5

  • CH3CHO


463.

When dihydroxy acetone reacts with HIO4, the product is/ are

  • HCHO

  • HCOOH

  • HCHO and HCOOH

  • HCHO and CO2


464.

Which of the following molecules has trigonal planar geometry?

  • IF3

  • PCl3

  • NH3

  • BF3


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465.

The correct sequence of increasing covalent character is represented by

  • LiCl < NaCl < BeCl2

  • BeCl2 < NaCl < LiCl

  • NaCl < LiCl < BeCl2

  • BeCl2 < LiCl < NaCl


466.

Which of the following would have a permanent dipole moment?

  • BF3

  • SiF3

  • SF4

  • XeF4


467.

Which one of the following oxides is expected to exhibit paramagnetic behaviour?

  • CO2

  • SO2

  • ClO2

  • SiO2


468.

Which of the following is the correct increasing bond order for the given diatomic species?

  • NO<O2-<C22-<He2-

  • C22-<He22+<O2-<NO

  • He2+<O2-<NO<C22-

  • O2-<NO<C22-<He2+


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469.

The geometry of Ni(CO)4 and Ni(PPh3)2Cl2 are:

  • both square planar

  • tetrahedral and square planar respectively

  • both tetrahedral

  • square planar and tetrahedral respectively


470.

With which of the given pairs CO2 resembles ?

  • HgCl2, C2H2

  • HgCl2, SnCl4

  • C2H2, NO2

  • N2O, NO2


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