✓ Board-verified
Science · 2025 · 1 mark
CBSE 2025 · Region 2 · Set 2 · Q17
Assertion (A): Propanal and propanone are structural isomers. Reason (R): Propanal and propanone both have the same molecular formula.
Assertion (A) : Propanal and propanone are structural isomers.
Reason (R) : Propanal and propanone both have the same molecular formula.
Official answer
(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
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, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.