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NCERT Exemplar · Class 10 · Science

Chapter 4: Carbon and Its Compounds

Practice each question, then open the answer or worked solution.

Explanation:

12 questions
Q28Multiple choice

Which of the following represents the saponification reaction?

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Correct option: D
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Worked solution

The answer is (d) CH3COOC2H5 + NaOH → CH3 COONa + C2 H5OH

Explanation:

Saponification is a reaction in which ethanol and sodium ethanoate are produced upon treatment of ester with an alkali.

Q29Written answer

The first member of the alkyne homologous series is

(a) ethyne

(b) ethene

(c) propyne

(d) methane

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Worked solution

The answer is (a) ethyne