Question

state two characteristics of the chemical reaction when dilute sulphuric acid is poured over zinc granules

Answer 1

two observations are:-
1)Effervescence can be seen as a result of liberation of hydrogen gas.
2)Displacement reaction occurs.

Answer 2

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☺ Hello mate__ ❤

◾◾here is your answer...

✒ Word reaction :--

Sulphuric acid + Zinc → Zinc sulphate + Hydrogen

✒ Molecular reaction ( balance reaction) :--

H2SO4 (aq) + Zn (s) --> ZnSO4 ( aq) + H2(g)

✒ In this acid -matel reaction ( also called displacement reaction) HYDROGEN gas evolved.

✒ Hydrogen gas can detect by candle ( burn with pop sound )

I hope, this will help you.

Thank you______❤

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