Which of the following compounds will show cis-trans isomerism?
(i) `(CH_(3))_2C=CH-C_(2)H_(5)`
(ii) `CH_(2)=CBr_(2)`
(iii) `C_(6)H_(5)CH=CH-CH_(3)`
`CH_(3)CH="CC"lCH_(3)`

Explanation

To determine which of the given compounds exhibit cis-trans isomerism, we need to analyze each compound based on the criteria for geometrical isomerism. The two main conditions for a compound to show cis-trans isomerism are:

1. There must be restricted rotation around the double bond (i.e., the presence of a double bond).
2. The substituents attached to the double-bonded carbons must be different (i.e., the substituents on each carbon must not be identical).

Now, let's analyze each compound step by step.

### Step 1: Analyze Compound (i) `(CH₃)₂C=CH-C₂H₅`
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