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Question
Mahima took two different test tubes and put zinc granules in one and in the other put zinc powder. She poured dilute sulphuric acid with the help of a glass rod in both the test tubes. Which of the test tubes would exhaust first?
Mahima took two different test tubes and put zinc granules in one and in the other put zinc powder. She poured dilute sulphuric acid with the help of a glass rod in both the test tubes. Which of the test tubes would exhaust first?
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Solution
The correct option is C Test tube with powder
Surface area of reactants plays a big role in the chemical reaction. The more the surface area of reactants, the faster the chemical change goes through. Powdered zinc has more surface area compared to granules and hence the reactants will get exhausted in the test tube with zinc powder.
Test tube with powder
Surface area of reactants plays a big role in the chemical reaction. The more the surface area of reactants, the faster the chemical change goes through. Powdered zinc has more surface area compared to granules and hence the reactants will get exhausted in the test tube with zinc powder.
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