/10 Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 12345678910 Chapter 1 : Chemical Reactions and Equations This Quiz Contains a set of 10 Questions. The Passing Cut-off is 60%. To start the Quiz, click on the Start Button. All the Best! 1 / 10 In a decomposition reaction, a compound breaks down into ions only simpler substances elements only liquids only 2 / 10 The brown substance formed on rusted iron is iron sulphide iron carbonate hydrated iron oxide iron chloride 3 / 10 Breaking down of a compound into simpler substances indicates a combination decomposition displacement neutralization 4 / 10 Prevention of rancidity is NOT achieved by refrigeration nitrogen flushing exposure to air antioxidants 5 / 10 Carbon can reduce a metal oxide only if the metal is highly reactive moderately reactive less reactive noble 6 / 10 Absorption of energy during a reaction defines it as endothermic exothermic combination displacement 7 / 10 Corrosion is defined as fast destruction of metals chemical reaction with acids slow eating away of metals melting of metals 8 / 10 An observation that best confirms occurrence of a chemical reaction is Change in size Formation of gas Change in position Change in shape 9 / 10 Which reaction occurs during respiration? Endothermic Exothermic Photochemical Neutralization 10 / 10 In a balanced chemical equation, the number of atoms of each element is less on RHS more on LHS equal on both sides ignored Your score is 0% Restart quiz
