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Organic Chemistry: Some Basic Principles and Techniques — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryOrganic Chemistry: Some Basic Principles and Techniques1 Mark
MCQ
Carbon and hydrogen are detected by heating the organic compound with $..........$
  • A
    Magnesium oxide
  • ✓
    Cupric oxide
  • C
    Zinc oxide
  • D
    Sulphur dioxide
✓

Answer

Correct option: B.
Cupric oxide
The detection of various elements present in an organic compound is called qualitative analysis. Carbon and hydrogen are present in almost all the organic compounds.
Carbon and hydrogen are detected by heating the organic compound with cupric oxide $\text{(CuO)}$ strongly, where carbon is oxidized to carbon dioxide and hydrogen to water.
Carbon dioxide is tested by lime water test, whereas water is tested by anhydrous copper sulphate test.

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