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The presence of a double bond between two carbon atoms makes the compound
A{'text': 'Saturated with only single bonds', 'label': 'A'}
B{'text': 'An alcohol', 'label': 'B'}
C{'text': 'A cyclic aromatic compound', 'label': 'C'}
D{'text': 'Unsaturated (alkene), general formula CₙH₂ₙ', 'label': 'D'}
Answer & Solution
Correct answer: D. {'text': 'Unsaturated (alkene), general formula CₙH₂ₙ', 'label': 'D'}
1. A C=C double bond means fewer hydrogens than the saturated alkane.
2. Unsaturated hydrocarbons with one C=C are called alkenes.
3. Alkene general formula: CₙH₂ₙ.
4. Alkynes with C≡C triple bond have CₙH₂ₙ₋₂.
_Source: NCERT Class 10 Science, Ch 4 "Carbon and its Compounds", §4.2.1_
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