Home › CBSE Class 10 › Chemistry › Chemical Reactions and Equations › A reaction in which two or more reactants combin…
A reaction in which two or more reactants combine to form a single product is called:
ACombination reaction
BDecomposition reaction
CDisplacement reaction
DDouble displacement
Answer & Solution
Correct answer: A. Combination reaction
1. Combination: A + B → AB (one product).
2. Example: CaO + H₂O → Ca(OH)₂ (slaking of lime).
3. Decomposition is the reverse (AB → A + B).
_Source: NCERT Class 10 Science Ch 1 §1.2 Types of Chemical Reactions_
Related questions
The colour of copper sulphate solution is:Quicklime (CaO) reacts vigorously with water to form slaked lime. This reaction is:Rancidity of food is caused by:Galvanisation, the coating of iron with a thin layer of another metal to prevent rusting, The chemical equation 2 H₂ + O₂ → 2 H₂O is balanced because:Photosynthesis can be classified as a (an):The substance which gets oxidised in the reaction CuO + H₂ → Cu + H₂O is:The reaction AgNO₃ + NaCl → AgCl + NaNO₃ is best classified as: