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Science · 2026 · 3 marks
CBSE 2026 · Region 2 · Set 3 · Q27
Define the following terms: 3 × 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.
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