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Which contains both saturated and unsaturated bonds?
ABenzene
BMethane
CEthyne
DEthane
Answer & Solution
Correct answer: A. Benzene
1. Methane and ethane have only C-C single bonds (saturated).
2. Ethyne has a single C-H bond and one C-C triple bond.
3. Benzene is a six-membered carbon ring with alternating single and double bonds.
4. So benzene contains both saturated (single) and unsaturated (double) bonds.
5. Modern theory describes benzene as having delocalised electrons, but the conventional answer is that it has both bond types.
_Source: NCERT Class 10 Science Ch 4 'Carbon and its Compounds' (byjus.com extract)_
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