The general formula of hydrocarbons with single covalent bonds is: 1. C n H 2n+2 2. C n H 2n 3. C n H 2n-2 4. C n H 2n-6

C n H 2n+2 Reason The general formula of hydrocarbons with single covalent bonds is C n H 2n+2

The hydrocarbon formed when sodium propanoate and soda lime are heated together:
Methane
Ethane
Ethene
Propane

Column A	Column B
(a) Sodium Chloride	1. has two shared pair of electrons
(b) Methane	2. has high melting and boiling points
(c) Hydrogen chloride gas	3. a greenhouse gas
(d) Oxidation reaction	4. has low melting and boiling points
(e) Water	5. Zn - 2e^- ⟶ Zn²⁺
	6. S + 2e^- ⟶ S^2-