Question

In $NO_3^-$ ion number of bond pair and lone pair of electrons on nitrogen atom are :-

• A. 2,2
• B. 3,1
• C. 1,3
• D. 4,0

Answer 1

The Correct Option is D

In \(NO_3^-\) ion number of bond pair and lone pair of electrons on nitrogen atom can be calculated as:

In the structure, there are 2σ, 1π, and one coordinate bond. The coordinate bond is theoretically equal to a double bond, but it behaves differently when an incoming ion approaches.

• A covalent bond type in which both electrons originate from the same atom is known as a coordinate bond, also known as a dative covalent bond. 
• Since nitrogen cannot have five bonds, it joins with oxygen to create a coordinate bond. 
• The number of bond pairs is assumed to be 1, despite the fact that coordinate bonds share two electrons.
• As a result, there are four bond pairs and no lone pairings.

Discover more from this topic: Chemical Bonding and Molecular Structure
 

Answer 2

The Correct Answer is (D)

Real Life Applications

The real-life application includes:

• Use of nitrate ion in table salt.

• The fertilizers also includes nitrate ion on it.
• The use of these nitrate ions as explosives.
• In the case of food coloring also this has been used.

Question can also be asked as

• What is the valency electron of N atom ?
• What are the caveats of using excess nitrate as fertilizer?
• What is the role of nitrate ion with respect to plant roots?
• The role of nitrate ion in day to day life?

Answer 3

A compound bond is the attraction force that keeps various constituents (atoms, particles, and so on) together in various synthetic species. An atom is bound to another by an atomic bond so that a particle can take shape. Then, a substance ties molecules together. With the aid of electron pairs between molecules, G N Lewis was the first to describe this phenomenon. He demonstrated Lewis' dot structure, which shows a compound holding between atom-sized particles. 
 

Lone Pair

A lone pair, also known as a non-bonding pair, is a pair of valence electrons that are not shared with another atom. (They don't participate in sharing). Atoms' outermost electron shell contains lone pairs.
 

• Each atom shares an electron when two atoms join together to create a bond.
• The electrons involved in this relationship are referred to as the bond pairs of electrons.
• Example: All four hydrogen atoms in the methane molecule join with a central carbon atom to create a bond pair.
   

Bond Pair

Each atom shares an electron when two atoms join together to create a bond.
The electrons involved in this relationship are referred to as the bond pairs of electrons.
Example: All four hydrogen atoms in the methane molecule join with a central carbon atom to create a bond pair.