Question

35. Equal length of magnesium ribbon are taken in two test tubes 'A' and 'B'. Sulphuric acid
is added to test tube 'A' and carbonic acid in the teat tube 'B' in equal amounts: (3)
a) Identify the test tube showing vigorous reaction. Give reason to support your
answer.
c) Name the gas liberated in both the test tubes. How will you prove its liberation?
Out of the two acids taken above
i) Which one will have lower pH value.
ii) Lower H* concentration respectively.​

Answer 1

Answer:

a) Vigorous reaction would take place in test tube A

Because sulphuric acid is stronger than carbonic acid in test tube B

c)hydrogen gas is liberated in both the testubes It can be tested by bringing a matchstick near to it which would burn with a pop sound

i) sulphuric acid will have lower pH value and lower H+ ion concentration