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Science · 2025 · 5 marks
CBSE 2025 · Region 5 · Set 1 · Q34
(A) (a) What is meant by the term homologous series of carbon compounds? Write molecular formula of any two consecutive members of homologous series…
(A)(a)
What is meant by the term homologous series of carbon compounds ? Write molecular formula of any two consecutive members of homologous series of ketones.
(b)
Write chemical equation of the reactions of ethanoic acid with
(i)
Sodium hydroxide and
(ii)
Ethanol (in the presence of an acid); giving the name of the products in each case.
(c)
Draw the structure of the molecule of benzene.
(B)(a)
Write the molecular formula of ethyne and draw its electron dot structure.
(b)
Write chemical equation to show the reaction of ethanol with
(i)
Sodium metal
(ii)
Ethanoic acid (in the presence of an acid)
(iii)
Acidified potassium dichromate Write the name of the product formed in each case.
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