Question:

Some of the properties of the two species, $NO _{3}^{-}$and $H _{3} O ^{+}$are described below. Which one of them is correct?

Updated On: Apr 15, 2024
  • Dissimilar in hybridisation for the central atom with different structures
  • Isostructural with same hybridisation for the central atom
  • Isostructural with different hybridisation for the central atom
  • Similar in hybridisation for the central atom with different structures
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The Correct Option is A

Solution and Explanation

In $NO _{3}^{-}$
$H=\frac{1}{2}[5+0-0+1]=3$
Thus, in $NO _{3}^{-}$, the central atom is $s p^{2}$ hybridised and it has trigonal planar geometry.



In $H _{3} O ^{+}$
$H=\frac{1}{2}[6+3-1+0]=4$
Thus, $O$ is $s p^{3}$ hybridised in $H _{3} O ^{+}$and $H _{3} O ^{+}$ has pyramidal geometry due to the presence of one lone pair of electrons.

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Concepts Used:

Alkenes

Alkenes

In organic chemistry, an alkene is a hydrocarbon containing a carbon-carbon double bond.[1]

Alkene is often used as synonym of olefin, that is, any hydrocarbon containing one or more double bonds.

Read More: Ozonolysis

IUPAC Nomenclature of Alkenes

  1. An alkene or cycloalkene is indicated by the suffix (ending) ene.
  2. For the root name, the longest chain must include both carbon atoms of the double bond.
  3. The root chain must be numbered beginning at the end closest to a double bond carbon atom. If the double bond is in the chain's centre, the nearest substituent rule is used to determine where the numbering begins.
  4. If the compound contains more than one double bond, it is named with a diene, triene, or equivalent prefix indicating the number of double bonds, and each double bond is assigned a locator number.

Read More: Unsaturated Hydrocarbon