How many carbons are found in a propane molecule?

How many carbons are found in a propane molecule? 
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ANSWER: 3
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Which of following statements is false about propane? (a) all bond angles are 109.5° (b) each carbon is sp3 hybridized (c) the compound is combustible (d) the compound undergoes polymerization to give polypropylene.

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The 1H NMR spectrum of propane will consist of? a. a triplet and a singlet b. a triplet and a quartet c. a doublet and a sextet d. a triplet and a septet

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