Calculations of Empirical Formulae and Molecular Formulae NEET Questions

Organic Chemistry - Purification and Characterization of Organic Compounds

Calculations of Empirical Formulae and Molecular Formulae MCQ Questions


13.
If empirical formula of a compound is CH and its molecular mass is 78, the molecular formula is
A.
C₆H₆
B.
C₄H₄
C.
C₈H₈
D.
C₅H₅
😑 View Answer Rough Work Error
ANSWER :
A. C₆H₆
14.
Which formula represents the actual number of atoms?
A.
Molecular
B.
Empirical
C.
Simplest
D.
Theoretical
😑 View Answer Rough Work Error
ANSWER :
A. Molecular
15.
Empirical formula of C₄H₈ is
A.
CH
B.
CH₂
C.
C₂H₄
D.
C₄H₈
😑 View Answer Rough Work Error
ANSWER :
B. CH₂
16.
What is the empirical formula of a compound with 80% C and 20% H?
A.
CH
B.
CH₂
C.
C₂H₂
D.
CH₃
😑 View Answer Rough Work Error
ANSWER :
D. CH₃
17.
Which is a correct empirical formula?
A.
C₆H₁₂O₆
B.
CH₂O
C.
C₂H₄O₂
D.
C₃H₆O₃
😑 View Answer Rough Work Error
ANSWER :
B. CH₂O
18.
If the empirical formula is CH₂ and molecular mass is 56, what is molecular formula?
A.
C₄H₈
B.
C₂H₄
C.
C₅H₁₀
D.
C₆H₁₂
😑 View Answer Rough Work Error
ANSWER :
A. C₄H₈