Sodium hydroxide is taken in place of dilute sulphuric acid, and the tube is
heated.
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Answer:
If sodium hydroxide is taken in place of dilute sulphuric acid and the tube is heated, sodium zincate is formed along with hydrogen gas. But heating of test tube will increase the rate of formation of hydrogen gas as heating of reaction mixture increases the rate of reaction.
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When Sodium hydroxide is taken in place of dilute sulphuric acid, and the tube is heated., Hydrogen gas is produced.
Explanation:
1. Chemical equation: Zn + 2NaOH ⇨ Na2ZnO2 + H2
2. When sodium hydroxide is used instead of dilute sulphuric acid and the tube is heated, sodium zincate and hydrogen gas are produced.
3. However, just as heating the reaction mixture speeds up the reaction, heating the test tube speeds up the generation of hydrogen gas.
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