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In the hydrocarbon HC -= C -H,the covale...

In the hydrocarbon `HC -= C -H`,the covalency of carbon is

A

one

B

two

C

three

D

four

Text Solution

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The correct Answer is:
To determine the covalency of carbon in the hydrocarbon `HC ≡ C - H`, we can follow these steps: ### Step 1: Identify the Structure The given hydrocarbon is `HC ≡ C - H`, which indicates that there is a carbon-carbon triple bond between the two carbon atoms. Each carbon atom is also bonded to a hydrogen atom. ### Step 2: Understand Covalency Covalency refers to the number of bonds an atom can form with other atoms. For carbon, this is typically determined by the number of valence electrons it has. ### Step 3: Determine Valence Electrons of Carbon Carbon has 4 valence electrons. This is a fundamental property of carbon, which allows it to form various types of bonds. ### Step 4: Analyze the Bonds in the Hydrocarbon In the structure `HC ≡ C - H`: - The first carbon (C1) is bonded to one hydrogen atom (H) and is involved in a triple bond with the second carbon (C2). - The second carbon (C2) is involved in the same triple bond with C1 and is also bonded to one hydrogen atom (H). ### Step 5: Count the Bonds - Each carbon atom is involved in: - 3 bonds from the triple bond (1 bond for each pair of shared electrons). - 1 bond with a hydrogen atom. Thus, each carbon atom has a total of 4 bonds. ### Step 6: Conclusion Since each carbon atom in the hydrocarbon `HC ≡ C - H` forms 4 bonds, the covalency of carbon in this hydrocarbon is **4**. ### Final Answer The covalency of carbon in the hydrocarbon `HC ≡ C - H` is **4**. ---
To determine the covalency of carbon in the hydrocarbon `HC ≡ C - H`, we can follow these steps: ### Step 1: Identify the Structure The given hydrocarbon is `HC ≡ C - H`, which indicates that there is a carbon-carbon triple bond between the two carbon atoms. Each carbon atom is also bonded to a hydrogen atom. ### Step 2: Understand Covalency Covalency refers to the number of bonds an atom can form with other atoms. For carbon, this is typically determined by the number of valence electrons it has. ...
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