Which gas is evolved when hydrochloric acid is added in first test tube containing pieces of marble and on second test tube containing zinc granules ?
Answers
1) Marble pieces (made of Calcium carbonate) react with hydrochloric acid to make Calcium chloride, Water and Carbon dioxide.
Calcium Carbonate + Hydrochloric acid - - - - ->
Calcium chloride + Water + Carbon Dioxide
Carbon Dioxide is the answer for marble pieces.
2)Zinc granules
Zn + 2HCl gives ZnCl2 + H2
That is when zinc react with Hydrochloric acid zinc chloride and hydrogen gas is formed
So for second one...Hydrogen is the answer...
Have fun if the answer is right..else doubt my might..LOL
hope it helped
Answer:
Explanation:
1) Marble pieces (made of Calcium carbonate) react with hydrochloric acid to make Calcium chloride, Water and Carbon dioxide.
Calcium Carbonate + Hydrochloric acid - - - - ->
Calcium chloride + Water + Carbon Dioxide
Carbon Dioxide is the answer for marble pieces.
2)Zinc granules
Zn + 2HCl gives ZnCl2 + H2
That is when zinc react with Hydrochloric acid zinc chloride and hydrogen gas is formed
So for second one...Hydrogen is the answer...