An alkene gives propan-2-one and 2-methylpropanal on ozonolysis. Identify the alkene. What products will be obtained when it is treated with hot and concentrated `KMnO_4` ?

Explanation

To solve the problem step by step, we need to identify the alkene that gives propan-2-one and 2-methylpropanal upon ozonolysis. Then we will determine the products formed when this alkene is treated with hot and concentrated KMnO4.

### Step 1: Analyze the ozonolysis products
The products of ozonolysis given are:
- Propan-2-one (CH3COCH3)
- 2-methylpropanal (C5H10O)

**Structure of Propan-2-one:**
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