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Science · 2022 · 2 marks
CBSE 2022 · Region 2 · Set 2 · Q7
Write the chemical formula of two consecutive homologous of organic compounds having functional group -OH. What happens to the (i) boiling point and (ii) solubility of organic compounds of a homologous series as the molecular mass increases. $\displaystyle \frac{1}{2} \times 4=2$
Marking-scheme solution
\(\displaystyle \mathrm{CH}_{3} \mathrm{OH}, \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\)
(i) Increases
(ii) Increases / decreases / follow gradation
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CBSE Class 10 Science past-paper question from the 2022board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.