Answer
365.4k+ views
Hint :Covalent compounds are chemical compounds made of elements that are connected by covalent bonds. Only nonmetallic elements can form Covalent bonds because elements of these compounds have the same or similar electronegativity values. Ionic compounds are made up of cations and anions. If a compound is made from a metal and a nonmetal, its bonding will be ionic.
Complete Step By Step Answer:
Carbon is a covalent compound.it is a nonmetal. It forms a bond which is called a covalent bond. Covalent bonds are bonds formed by sharing of electrons. Carbon can form covalent bonds with itself as well as other atoms. Whereas lead is a heavy metal. It forms ionic bonds with other elements and so it is an ionic compound as it takes electrons for forming bonds.
Hence assertion is true
The valency of carbon is 4. For forming bonds it has to satisfy tetravalency. It forms bonds by sharing electrons with other atoms. So it has to form 4 covalent bonds either with its atom or atoms of other elements. Carbon cannot lose or gain electrons to form free ions so it cannot lose 4 electrons to form \[{C^{4 + }}\]ions as very high energy is required to remove 4 electrons. Whereas lead can form metallic ions by losing electrons.
Hence reason is wrong
Therefore the correct option is C. Assertion is correct but the reason is incorrect.
Note :
All covalent compounds cannot lose or gain electrons to form free ions either positive or negative. But in the case of ionic compounds, it is different. In ionic compounds, there is a complete transfer of electrons to form a bond so they can easily lose or gain electrons to exist as free ions.
Complete Step By Step Answer:
Carbon is a covalent compound.it is a nonmetal. It forms a bond which is called a covalent bond. Covalent bonds are bonds formed by sharing of electrons. Carbon can form covalent bonds with itself as well as other atoms. Whereas lead is a heavy metal. It forms ionic bonds with other elements and so it is an ionic compound as it takes electrons for forming bonds.
Hence assertion is true
The valency of carbon is 4. For forming bonds it has to satisfy tetravalency. It forms bonds by sharing electrons with other atoms. So it has to form 4 covalent bonds either with its atom or atoms of other elements. Carbon cannot lose or gain electrons to form free ions so it cannot lose 4 electrons to form \[{C^{4 + }}\]ions as very high energy is required to remove 4 electrons. Whereas lead can form metallic ions by losing electrons.
Hence reason is wrong
Therefore the correct option is C. Assertion is correct but the reason is incorrect.
Note :
All covalent compounds cannot lose or gain electrons to form free ions either positive or negative. But in the case of ionic compounds, it is different. In ionic compounds, there is a complete transfer of electrons to form a bond so they can easily lose or gain electrons to exist as free ions.
Recently Updated Pages
Mark and label the given geoinformation on the outline class 11 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
When people say No pun intended what does that mea class 8 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Name the states which share their boundary with Indias class 9 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give an account of the Northern Plains of India class 9 social science 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)
Advantages and disadvantages of science
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
Bimbisara was the founder of dynasty A Nanda B Haryanka class 6 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)
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
10 examples of evaporation in daily life with explanations
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![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)
How do you graph the function fx 4x class 9 maths 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)