Question

oxygen combines with two isotope of carbon C12 and C14 to form two different sample of carbon dioxide. this data illustrates -
1 law of conservation of mass
2 law of multiple proportion
3 law of gaseous volume
4 none of these

Answer 1

Answer:

Well, we could write the stoichiometric equation for the formation of carbon dioxide…

C(s)+O2(g)⟶CO2(g)

….take that atmosphere….and if we labelled the carbon source … (I don’t know how you would effect separation of the solid isotopes!)

We got…

12C(s)+O2(g)→12CO2(g)

….else….

14C(s)+O2(g)→14CO2(g)

…i.e. 2 isotopically labelled samples of carbon dioxide as required. Again, I think such samples of ISOTOPICALLY LABELLED carbon would be hard to prepare … so the question is a bit fanciful.

Answer 2

3. Law of gaseous volume is the answer.