2ml of NaOH solution is added to few pieces to a hranulated zinc metal Taken in test tube . When contents are warmed , a gas evolves which is bybbled through a soap solution before testing . Write the equation of chemical reaction involved and the test to detect the gas . Name the gas which will be evolved when the same metal reacts with dilute solution of a strong acid .
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The gas involved is Hydrogen.
Reaction
2NaOH + Zn --------> Na2ZnO2 + H2
Test :-
The gas burns with a pale blue flame.
When Zn reacts with Dil. solution of a strong acid like HCl,
The gas will still be H2.
Reaction
2NaOH + Zn --------> Na2ZnO2 + H2
Test :-
The gas burns with a pale blue flame.
When Zn reacts with Dil. solution of a strong acid like HCl,
The gas will still be H2.
Answered by
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hey mate!
the reaction is
zn +2naoh====na2zno2+h2
the gas evolved is hydrogen
to test hydrogen gas take a burning splintcher near the test tube the gas burns with a popping sound
lets take a strong acid hcl
zn +2hcl====zncl2+h2
thus hydrogen gas is evolved
the reaction is
zn +2naoh====na2zno2+h2
the gas evolved is hydrogen
to test hydrogen gas take a burning splintcher near the test tube the gas burns with a popping sound
lets take a strong acid hcl
zn +2hcl====zncl2+h2
thus hydrogen gas is evolved
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