50
Minutes
30
Questions
1 / -0
Marking Scheme
Q1. The total number of electrons present in one molecule of methane is;
Q2. Calculate the number of moles for each case respectively;
I.
II. Molecule of
III. at STP
Q3. How many moles of carbon present in of [Atomic mass of and ]
Q4. The number of molecules in ammonia is
Q5. How many atoms are present in ?
Q6. How many atoms are present in of ethanol?
Q7. Number of g-atom of S present in are:
Q8. Which of the following pair of gases contain the same number of molecules?
Q9. The mass of a molecule of water is
Q10. How many moles of hydrogen atoms present in of ?
...and 20 more questions.