Science, asked by ansultelecom, 9 months ago

answer this 21 question

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Answered by hchandra5205

1

onion juice is an olfactory indicator.

a) H2 gas is evolved in this case.

Zn + H^+(from any acid) -----> Zinc salt + H2

b) Water is formed and brisk effervescence of CO2 is seen.

Na2CO3+ H^+(from any acid) -----> sodium salt + H2O + CO2

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