Subject :NSO Class : Class 7
Kanav took two test tubes marked as I and II. In test tube I, he put calcium carbonate and hydrochloric acid while in test tube II, he put zinc granules and hydrochloric acid. He passed the gas coming out from both the test tubes in lime water. What would be his observation?
A The gas coming out from test tube I turned lime water milky.
B The gas coming out from test tube II turned lime water milky.
C The gases coming out from both the test tubes turned lime water milky.
D None of these.
it could have been simpler
Ans 1:
Class : Class 7
they should have said correct statements. So the answer should be A
Ans 2:
Class : Class 4
Answer should be A as zinc granules donât react and produce co2 gas so itâs simple and answer should be A
Ans 3:
Class : Class 8
If it could have been simpler, then you don't have to study for these Olympiads as its too difficult.
And I don't think it is very difficult and the option is (A) i think.
Ans 4:
Class : Class 8
A is the answer
Ans 5:
Class : Class 7