MHT CET202012 Oct 2020Evening ShiftChemistrySome Basic Concepts of ChemistryActual
Which gas among the following contains maximum number of molecules at STP? (Molar masses in g mol ⁻¹ CO ₂=44, Ar =39 9, CH ₄=16, O ₂=32 )
Options
- A24 0 ~g of O ₂
- B16 0 ~g of CH ₄
- C13 3 ~g of Ar
- D11 ~g of CO ₂
Correct answer
B. 16 0 ~g of CH ₄
Step-by-step solution
i. n _ Ar = 13.3 39.9 =0.33 ~mol ii. n _ O ₂ = 24 32 =0.75 ~mol iii. n _ CO ₂ = 11 44 =0.25 ~mol iv. n_ CH = 16 16 =1 ~mol Maximum no. of moles = Maximum no. of molecules.