What will be observe when you bring a lighted matchstick near the mouth of the test-tube in which NaOH and Zn react ?
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Answer. Zinc react with sodium hydroxide to produce zincate sodium and hydrogen. This reaction takes place at a temperature near 550°C. (C) is the correct answer..as when hydrogen comes in contact with fire..a pop sound is heard.
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What will be observe when you bring a lighted matchstick near the mouth of the test-tube in which NaOH and Zn react ?
When zinc metal is heated with NaOH Solution,the gas evolved is hydrogen . As a result, pop sound is heard.
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