Q34 of 61 Page 1

What do you observe when dil. HCl is added on Zn pieces taken in a test tube? How would you identify the gas evolved? Write one use of this gas.

when dil. HCl is added on Zn pieces taken in a test tube, there is evolution of a colorless gas with brisk bubbles from the test tube.

The gas can be identified by bringing a match stick near the gas, the gas burns with a pop sound which confirms that the gas evolved is H2.


H2 gas is used in space crafts.


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