Question

Explain the qualitative analysis of organic compounds for deduction of carbon and hydrogen with suitable reaction

Answer 1

Answer:

Qualitative analysis of carbon and hydrogen

The detection of various elements present in an organic compound is called qualitative analysis. .Carbon and hydrogen are detected by heating the organic compound with cupric oxide (CuO) strongly, where carbon is oxidized to carbon dioxide and hydrogen to water.

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Answer 2

Answer

$\bigstar$ Carbon and hydrogen and detected by heating the compound with CuO that is cupric oxide.

$\bigstar$When carbon is reacted with CuO it produces Cu and CO₂. Carbon present in the compound is oxidised to carbon dioxide, which turns lime water milky.

$\sf C+2CuO\to 2Cu+Co_{2}$

Carbon dioxide turns lime water milky.

$\sf Ca(OH)_{2} + CO_{2} \to CaCO_{3} + H_{2}O$

$\bigstar$ Hydrogen present in the compound is converted into water, which turns anhydrous copper sulphate into blue.

$\sf H_{2} + CuO \to Cu + H_{2}O$

Water vapour turn anhydrous copper sulphate into blue.

$\sf CuSO_{4} + 5H_{2}O \to CuSO_{4} \: . 5H_{2}O$