Statement 1: Detergents with a chain of hydrocarbons are non-biodegradable.

Statement 2: Detergents with branched-chain cause environmental pollution as they are biodegradable.

Both statements are false

The correct answer is 3. Both statements are false.

Statement 1: Detergents with a chain of hydrocarbons are non-biodegradable. This statement is false. Detergents with a chain of hydrocarbons are biodegradable, but they are not as biodegradable as detergents with branched chains.

Statement 2: Detergents with branched-chain cause environmental pollution as they are biodegradable. This statement is also false. Detergents with branched chains are more biodegradable than detergents with a chain of hydrocarbons, and they do not cause environmental pollution.

In fact, detergents with branched chains are preferred over detergents with a chain of hydrocarbons because they are more biodegradable and less likely to cause environmental pollution.

Here is a table that summarizes the biodegradability of detergents with different types of hydrocarbon chains: