NDA Chemical Reactions and Equations — practice questions
15 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice NDA Chemical Reactions and Equations in the app →A reaction in which two or more reactants combine to form a single product is called:When a single reactant breaks down into two or more products, the reaction is called:Rusting of iron is an example of:An exothermic reaction is one in which heat is:Zn + CuSO₄ → ZnSO₄ + Cu is an example of:The chemical formula of slaked lime is:In a chemical equation, the symbol (s), (l), (g), (aq) represent:The reaction AgNO₃ + NaCl → AgCl + NaNO₃ is best classified as:The substance which gets oxidised in the reaction CuO + H₂ → Cu + H₂O is:Photosynthesis can be classified as a (an):The chemical equation 2 H₂ + O₂ → 2 H₂O is balanced because:Galvanisation, the coating of iron with a thin layer of another metal to prevent rusting, uses:Rancidity of food is caused by:Quicklime (CaO) reacts vigorously with water to form slaked lime. This reaction is:The colour of copper sulphate solution is: