1. The reaction is a :
(A) Decomposition reaction
(B) Combination reaction
(C) Double displacement reaction
(D) Displacement reaction
13. Neutralization reaction is an example of :
(A) Exothermic reaction
(B) Endothermic reaction
(C) Oxidation reaction
(D) None of these
14. Which of the following statements is/are true?
(A) The total mass of the system remains same in a chemical change.
(B) A chemical change is permanent and irreversible.
(C) A physical change is temporary and reversible
(D) All of these
15. Which of the following statements is incorrect?
(A) In oxidation, oxygen is added to a substance
(B) In reduction, hydrogen is added to a substance
(C) Oxidising agent is oxidized
(D) Reducing agent is oxidized
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