Mole ConceptHard
Question
When the same amount of zinc is treated separately with excess of sulphuric acid and excess of sodium hydroxide, the ratio of volumes of hydrogen evolved is :
Options
A.1 : 1
B.1 : 2
C.2 : 1
D.9 : 4
Solution
VH2 ∞ nH2 [at constant P and T]
Zn + H2SO4 → ZnSO4 + H2
Zn + 2NaOH → Na2 ZnO2 + H2
Zn + H2SO4 → ZnSO4 + H2
Zn + 2NaOH → Na2 ZnO2 + H2
Create a free account to view solution
View Solution FreeMore Mole Concept Questions
A mixture of N2 and H2 is caused to react in a closed container to form NH3. The reaction ceases before either reactant ...If 0.50 mole of BaCl2 is mixed with 0.20 mole of Na3 PO4, the maximum number of moles of Ba3(PO4)2 that can be formed is...The atomic mass of a diatomic gaseous element is 19. Which of the following statement(s) is/are correct regarding the el...Two elements A and B combine to form compound X and Y. For the fixed mass of A, masses of B combined for the compounds X...Two elements A and B combine to form compound X and Y. For the fixed mass of A, masses of B combined for the compounds X...