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Science · 2022 · 2 marks
CBSE 2022 · Region 1 · Set 1 · Q1
(a)Write the molecular formula of the following carbon compounds :(i)Methane(ii)Propane(b)Carbon compounds have low melting and boiling points. Why ?
(a)
Write the molecular formula of the following carbon compounds :
(i)
Methane
(ii)
Propane
(b)
Carbon compounds have low melting and boiling points. Why ?
Marking-scheme solution
(i) \(\displaystyle \mathrm{CH}_{4}\)
(ii) \(\displaystyle \mathrm{C}_{3} \mathrm{H}_{8}\)
(b) Intermolecular forces are weak / not strong
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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.