Answer
Verified
376.5k+ views
Hint: $A{{l}_{4}}{{C}_{3}}$ is an ionic carbide because there is one metal element and the other is non-metal. By finding the oxidation number of the carbon we can find the type of the compound and the oxidation number of aluminium is +3.
Complete answer:
Carbides are the group of compounds in which the carbon atom is bonded with highly electropositive elements like alkali metal elements, alkaline earth metal elements, and group III elements. So, based on the oxidation number of carbon or type of carbon we can classify them as methanide, acetylides, and sesqui carbides.
If the carbon is in ${{C}^{4-}}$ form then they are methanides, if the carbon is in $C_{2}^{2-}$ form then they are acetylides, and if the carbon is in $C_{3}^{4-}$ form then they are sesqui carbides.
So, the given compound is $A{{l}_{4}}{{C}_{3}}$, we can find the oxidation of carbon, as the oxidation number of aluminium is +3.
$(+3)4+3x=0$
$12+3x=0$
$3x=-12$
$x=-4$
So, the oxidation number of carbon is -4 which means the carbon is in ${{C}^{4-}}$ form. Therefore, it is a methanide.
So Option (b) is the correct answer.
Additional Information:
So, $A{{l}_{4}}{{C}_{3}}$ is known as aluminium carbide and it is a crystal of pale yellow to brown in color. We can make aluminium carbide in an electric arc furnace by the direct reaction of aluminium and carbon. They are called ionic carbides because aluminium is a metal and carbon is a non-metal.
Note:
Another example of a compound that belongs to the methanide group is beryllium carbide whose formula is $B{{e}_{2}}C$ as in this the oxidation number of Be is +2 and oxidation number of carbon is -4.
Complete answer:
Carbides are the group of compounds in which the carbon atom is bonded with highly electropositive elements like alkali metal elements, alkaline earth metal elements, and group III elements. So, based on the oxidation number of carbon or type of carbon we can classify them as methanide, acetylides, and sesqui carbides.
If the carbon is in ${{C}^{4-}}$ form then they are methanides, if the carbon is in $C_{2}^{2-}$ form then they are acetylides, and if the carbon is in $C_{3}^{4-}$ form then they are sesqui carbides.
So, the given compound is $A{{l}_{4}}{{C}_{3}}$, we can find the oxidation of carbon, as the oxidation number of aluminium is +3.
$(+3)4+3x=0$
$12+3x=0$
$3x=-12$
$x=-4$
So, the oxidation number of carbon is -4 which means the carbon is in ${{C}^{4-}}$ form. Therefore, it is a methanide.
So Option (b) is the correct answer.
Additional Information:
So, $A{{l}_{4}}{{C}_{3}}$ is known as aluminium carbide and it is a crystal of pale yellow to brown in color. We can make aluminium carbide in an electric arc furnace by the direct reaction of aluminium and carbon. They are called ionic carbides because aluminium is a metal and carbon is a non-metal.
Note:
Another example of a compound that belongs to the methanide group is beryllium carbide whose formula is $B{{e}_{2}}C$ as in this the oxidation number of Be is +2 and oxidation number of carbon is -4.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
Mark and label the given geoinformation on the outline class 11 social science CBSE
When people say No pun intended what does that mea class 8 english CBSE
Name the states which share their boundary with Indias class 9 social science CBSE
Give an account of the Northern Plains of India class 9 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
In Indian rupees 1 trillion is equal to how many c class 8 maths CBSE
Which are the Top 10 Largest Countries of the World?
How do you graph the function fx 4x class 9 maths CBSE
Give 10 examples for herbs , shrubs , climbers , creepers
Difference Between Plant Cell and Animal Cell
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Why is there a time difference of about 5 hours between class 10 social science CBSE