✓ Board-verified
Science · 2026 · 3 marks
CBSE 2026 · Region 2 · Set 3 · Q27
Define the following terms : $\displaystyle 3 \times 1=3$(a)Corrosion(b)Rancidity(c)Double displacement reaction
Define the following terms : $\displaystyle 3 \times 1=3$
(a)
Corrosion
(b)
Rancidity
(c)
Double displacement reaction
Marking-scheme solution
(a) The process in which a metal is attacked by substances around it such as moisture, acids etc.
(b) Oxidation of fats and oils present in food resulting in change of its smell and taste.
(c) The reaction in which there is an exchange of ions takes place between the reactants.
More from Chemical Reactions and Equations
- Copper powder is taken in a china dish and heated over a burner. Name the product formed and state its…2024 · asked 3×
- Why do we balance a chemical equation? Name and state the law that suggests the balancing of a chemical…2025 · asked 3×
- Which of the following is an example of a displacement reaction?2026 · asked 3×
- Define a double displacement reaction. Write the chemical equation of a double displacement reaction which is…2023 · asked 3×
- The balanced chemical equation showing reaction between quicklime and water is:2023 · asked 3×
- C 6 H 12 O 6(aq)+6 O 2( g) → 6 CO 2( g)+6 H 2 O (l). The above reaction is an example of -2026 · asked 3×
- Which one of the following reactions is different from the remaining three?2024 · asked 3×
- (i) While electrolysing water before passing the current some drops of an acid are added. Why? Name the gases…2023 · asked 3×
CBSE Class 10 Science past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.