Adaptive Practice
Chemical Reactions
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Easy
What is a chemical reaction?
Easy
Which of the following is an example of a chemical reaction?
Medium
In the reaction between hydrochloric acid and sodium hydroxide, what are the products formed?
Medium
Which gas is released when zinc reacts with dilute sulfuric acid?
Medium
What type of chemical reaction is shown when iron rusts?
Easy
In a chemical equation, what does the arrow (→) represent?
Medium
Which of the following is NOT a sign of a chemical reaction?
Hard
In the context of Indian agriculture, which chemical reaction is important for making fertilizers?