Answer
396.9k+ views
Hint: In this question we will first check whether the assertion and reason are correct or not. Then we will find out whether the reason is the correct explanation of the assertion or not.
Complete step by step answer:
The assertion says that ionic bonds are directional in nature whereas covalent bonds are non-directional.
Ionic bonds are strong electrostatic attraction forces formed between positive and negative ions. This bond is non-directional, which means that the pull of the electrons does not favor one atom over another.
In essence, the primary chemical bond (a sigma bond) is made when two atoms share electrons in between them from their electron. They will only share these electrons by approaching one another, and that they can only approach one another in a line because there are only two atoms.
So the assertion is wrong,
Now we will check the reason.
The reason is that according to the orbital overlap concept, the formation of a covalent bond between two atoms results by pairing of electrons present in the valence shell having same spins.
According to the orbital overlap concept, the greater the overlap, stronger is that the bond formed between the two atoms. Thus, consistent with the orbital overlap concept, atoms combine by overlapping their orbital and thus forming a lower energy level where their valence electrons with opposite spin, pair up to make covalent bonds.
So the reason is wrong.
So, the correct answer is Option D.
Note: The strength of chemical bonds varies considerably; there are "strong bonds" or "primary bonds" such as covalent, ionic and metallic bonds, and "weak bonds" or "secondary bonds" such as dipole–dipole interactions, the London dispersion force and hydrogen bonding.
Complete step by step answer:
The assertion says that ionic bonds are directional in nature whereas covalent bonds are non-directional.
Ionic bonds are strong electrostatic attraction forces formed between positive and negative ions. This bond is non-directional, which means that the pull of the electrons does not favor one atom over another.
In essence, the primary chemical bond (a sigma bond) is made when two atoms share electrons in between them from their electron. They will only share these electrons by approaching one another, and that they can only approach one another in a line because there are only two atoms.
So the assertion is wrong,
Now we will check the reason.
The reason is that according to the orbital overlap concept, the formation of a covalent bond between two atoms results by pairing of electrons present in the valence shell having same spins.
According to the orbital overlap concept, the greater the overlap, stronger is that the bond formed between the two atoms. Thus, consistent with the orbital overlap concept, atoms combine by overlapping their orbital and thus forming a lower energy level where their valence electrons with opposite spin, pair up to make covalent bonds.
So the reason is wrong.
So, the correct answer is Option D.
Note: The strength of chemical bonds varies considerably; there are "strong bonds" or "primary bonds" such as covalent, ionic and metallic bonds, and "weak bonds" or "secondary bonds" such as dipole–dipole interactions, the London dispersion force and hydrogen bonding.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Why Are Noble Gases NonReactive class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let X and Y be the sets of all positive divisors of class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x and y be 2 real numbers which satisfy the equations class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x 4log 2sqrt 9k 1 + 7 and y dfrac132log 2sqrt5 class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x22ax+b20 and x22bx+a20 be two equations Then the class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
At which age domestication of animals started A Neolithic class 11 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Which are the Top 10 Largest Countries of the World?
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give 10 examples for herbs , shrubs , climbers , creepers
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference Between Plant Cell and Animal Cell
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Write a letter to the principal requesting him to grant class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Change the following sentences into negative and interrogative class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill in the blanks A 1 lakh ten thousand B 1 million class 9 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)