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  • a)
    a
  • b)
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  • c)
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  • d)
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Correct answer is option 'B'. Can you explain this answer?
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a)ab)bc)cd)dCorrect answer is option 'B'. Can you explain this answer?
Double bond equivalent of C5H10O is 1. So, it will have either a double bond or a ring.So, it may be an aldehyde, ketone, alcohol( carbon chain having double bond) or epoxide.
Propyl ethanoate has 2 oxygen atoms. So, it will never be its isomer. HOwever option a and c will be its isomer as they are aldehyde.
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a)ab)bc)cd)dCorrect answer is option 'B'. Can you explain this answer?
**Explanation:**

Structural isomers are compounds that have the same molecular formula but different structural arrangements. In this case, we are given the molecular formula C5H10O, and we need to determine which of the given compounds are structural isomers of this formula.

Let's analyze each compound:

**I. 2-methyl butanal**

The molecular formula of 2-methyl butanal is C5H10O. It has a butanal group (C4H8O) with a methyl group (CH3) attached to the second carbon atom. Therefore, it is a structural isomer of C5H10O.

**II. Propyl ethanoate**

The molecular formula of propyl ethanoate is C5H10O2. It has a propyl group (C3H7) attached to the ethanoate group (C2H3O). Since the molecular formula does not match C5H10O, it is not a structural isomer of C5H10O.

**III. Pentanal**

The molecular formula of pentanal is C5H10O. It has a linear chain of five carbon atoms with an aldehyde functional group (-CHO) at the end. Therefore, it is a structural isomer of C5H10O.

Based on the analysis of each compound, we can conclude that **compounds I and III (2-methyl butanal and pentanal) are structural isomers of C5H10O**. Therefore, the correct answer is **option B**.
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