18 Questions
Which type of reaction requires energy in the form of heat, light, or electricity to break reactants?
Endothermic Reaction
What is the product obtained when CaCO3 is heated?
CaO(s) + CO2(g)
In the reaction 2Cu + O2 → 2CuO, what process is occurring with oxygen?
Oxidation
What type of reaction involves the mutual exchange of ions between two compounds?
Double Displacement Reaction
What is the color change observed when Ferrous sulphate reacts to form Ferric oxide?
Green to Red-brown
What happens when Zinc reacts with copper sulfate?
Copper is displaced by Zinc
In which type of reaction is heat released along with the formation of products?
Combination reaction
What is the product formed when CaO reacts with H2O?
Ca(OH)2 (aq)
Which type of chemical reaction involves the burning of natural gas, releasing heat?
Combination reaction
What happens in an electrolytic decomposition reaction?
Gas is evolved
Which type of reaction involves the formation of water from hydrogen and oxygen?
Combination reaction
What is released during the burning of coal?
$CO2$ (g)
In a chemical reaction, the formation of a precipitate is characterized by which of the following?
Change in state from solid to liquid
Which observation denotes a change in temperature in a chemical reaction?
Increase in temperature
The evolution of gas in a chemical reaction can be observed in the reaction between zinc and dilute sulphuric acid. What is the gas produced in this reaction?
Hydrogen gas
When quicklime reacts with water to form slaked lime, what is the characteristic change in temperature observed?
Increase in temperature
Writing chemical equations involves representing reactants and products using symbols and formulas. Which of the following represents a balanced chemical equation?
Fe + O2 → Fe2O3
Colour change in a chemical reaction can be observed in the reaction between citric acid and purple colored potassium permanganate solution. What does the color change indicate?
Reduction reaction
This quiz covers different types of chemical reactions including sunlight-induced reactions, endothermic reactions, and displacement reactions. Test your knowledge on how energy, light, and electricity affect reactants and products in various chemical processes.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
