✓ Board-verified
Science · 2025 · 5 marks
CBSE 2025 · Region 1 · Set 2 · Q35
(a) A saturated organic compound 'A' with two carbon atoms belongs to the homologous series of alcohols. On oxidation, it forms an organic acid 'B'…
A saturated organic compound 'A' with two carbon atoms belongs to the homologous series of alcohols. On oxidation, it forms an organic acid 'B' with molecular mass $\displaystyle 60$ u. On heating 'A' with excess concentrated sulphuric acid at $\displaystyle 443$ K, an unsaturated hydrocarbon 'C' is formed.
(i)
Name A, B and C.
(ii)
Calculate molecular mass of C.
(iii)
What happens when a pinch of sodium carbonate is added to compound B ? Write chemical equation for the reaction.
(iv)
Draw electron dot structure of compound B.
(i)
What is a homologous series of carbon compounds ? Write the name and formula of three successive members of the homologous series of compounds having functional group - COOH.
(ii)
Write the name of two carbon compounds in which carbon atoms are arranged in the form of a ring. Draw the structure of any one of the two.
There is no official answer for this question on the site.
All Carbon and its Compounds questions2025 question paperNCERT solutions: Carbon and its CompoundsPractice Carbon and its Compounds →
More from Carbon and its Compounds
- The number of single and double bonds present in a molecule of benzene (C_6 H_6) respectively, are:2024
- Which one of the following hydrocarbons is different from the others?2024
- Draw two different possible structures of a saturated hydrocarbon having four carbon atoms in its molecule. What are these two structures of the…2022
- Hydronium ions are formed by the reaction between:2023
- The number of electrons in the outermost shell of the atom of a non-metal can be:2023
- (i) Butane had both Carbon - Carbon bonds as well as Carbon - Hydrogen bonds. Draw its structural formula and state the number of (1) C-H bonds and…2023
- The melting and boiling points of carbon compounds are generally low and they are largely non-conductors of electricity. State two conclusions based…2024
- Select the correct option(s) in the following table:2023
CBSE Class 10 Science past-paper question from the 2025 board exam. Where our answers come from.