Back to SOME BASIC CONCEPTS OF CHEMISTRY
JEE CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY
1
Medium
1 of 1
Analyzing
+4 | -1
Statement I: formed by the oxidation of sulphur or hydrogen sulphide contains sulphur and oxygen in mass ratio.
Statement II: Different samples of a pure chemical substance always contain the same proportions of elements by mass.
Statement II: Different samples of a pure chemical substance always contain the same proportions of elements by mass.
View answer and explanation
Correct option: D
Statement I is false; Statement II is true
Option D (Statement I is false; Statement II is true) is correct because the mass ratio of S and O in is not 1:2, but the law of definite proportions (Statement II) is always true.
More Questions from SOME BASIC CONCEPTS OF CHEMISTRY
Practice All Chapter MCQs →
If a mixture containing 3 moles of hydrogen and 1 mole of nitrogen is converted completely into ammonia, the ratio of initial and final volumes under the same temperature and pressure would be:
How many g are present in one mole of Ag?
8 g of NaOH is dissolved in 18 g of Mole fraction of NaOH in solution and molality (in of the solution respectively are
of at NTP contains :-
One litre of is passed through red hot coke. The volume becomes 1.4 litres at same temperature and pressure. The composition of products is
How many millilitre of are needed to dissolve of carbonate?