A metal "M" reacts with "S" to form "MS". If 3.6g of M reacts with 0.09 mole of sulphur. Then what is name of metal "M"
Correct answer: B. Ca
- A. Cr
- B. Ca
- C. Mg
- D. Mn
Explanation
M+S-4 MSStoichlometrically, S:MI mole: I mole0.09 mole: 0.09 moleand 0.09 mole of M = 3.6gI mole of M =3640g or Ca.0.09
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Fundamental Concepts of Chemistry
Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
Practise Fundamental Concepts of Chemistry
894 free Fundamental Concepts of Chemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Fundamental Concepts of Chemistry questions
If we know the mass of one substance, we can calculate the volume of other substance and vice versa with the help of chemical equation, this is called:
The actual yield is always less than the theoretical yield due to
11.207dm3 of methane at STP has_moles of hydrogen atoms
The limiting reactant is the reactant which:
Mg metal reacts with HCl to give hydrogen gas. What is minimum weight of HCI required to produce 12g of H2?
The mass of an atom (element) compared with the mass of one atom of C-12 is called: