Major alkene from dehydrohalogenation of a given halide

This type of question, asked 2 times: 29 Jan 2023, 28 Jan 2025. All 2 questions below, oldest first.

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Question 1
29 Jan 2023
124 $The one giving maximum number of isomeric alkenes on dehydrohalogenation reaction is (excluding rearrangement)$
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Question 2
28 Jan 2025
113 $\underset{\mathbf{\mathrm{\Delta}}}{\overset{KOH/EtOH\ (excess)}{\rightarrow}}$
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