In a test tube, an acid is added to a substance 'Z'. Due to the chemical reaction between the acid and 'Z', a gas is evolved. When a burning candle is brought near the test tube, the candle extinguishes. Identify the substance 'Z'. Will mark you brainliest
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5
Explanation:
Ans. Curd and sour substances contain acids which can react with copper vessels and ... How will you test for the presence of this gas? ... The gas evolved extinguishes a burning candle.
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2
Answer:
pop sound is evolved
Explanation:
this indicates release of H2/hydrogen gas
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