Lakhmir Singh and Manjit Kaur Solutions for Chapter: Carbon And its Compounds, Exercise 2: Short Answer Type Questions

Why does carbon form compound mainly by covalent bonding?

Give the general formula of an alkane.

$$\begin{gathered} \mathrm{A}={\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}} \\ \mathrm{B}={\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}-2} \\ \mathrm{C}={\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}+2}. \end{gathered}$$

Enter your correct answer as A, B or C.

Give the general formula of an alkene.

$$\begin{gathered} \mathrm{A}={\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}} \\ \mathrm{B}={\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}-2} \\ \mathrm{C}={\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}+2}. \end{gathered}$$

Enter your correct answer as A, B or C.

Give the general formula of an alkyne.

$$\begin{gathered} \mathrm{A}={\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}} \\ \mathrm{B}={\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}-2} \\ \mathrm{C}={\mathrm{C}}_{\mathrm{n}}{\mathrm{H}}_{2\mathrm{n}+2}. \end{gathered}$$

Enter your correct answer as A, B or C.

Which of the following is the molecular formula of benzene?
$$\begin{gathered} \mathrm{A}; {\mathrm{C}}_6{\mathrm{H}}_6 \\ \mathrm{B}; {\mathrm{C}}_6{\mathrm{H}}_{10} \\ \mathrm{C}; {\mathrm{C}}_6{\mathrm{H}}_{12} \end{gathered}$$

Enter your correct answer as A, B or C.

Which of the two has a branched-chain: isobutane or normal butane?

Give the common name of ethyne.

Give the common name of ethene.