A substance is analyzed and found to have an emperical formula of CH2 and a molar mass of 56g/mole. What is the molecular formula of the compound?
A. C2H4
B. C3H6
C. C4H8
D. C5H10
Chemistry Mcqs
The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in__________?
The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in__________?
A. 1.8 gram of H2O
B. 12 moles of KMnO4
C. 0.6N H2SO4
D. 4.6 gram of C2H5OH
The molecular formula for cholesterol is C27 H46 O. What are the degrees of unsaturation for this compound?
The molecular formula for cholesterol is C27 H46 O. What are the degrees of unsaturation for this compound?
A. 5
B. 6
C. 7
D. 8
The most appropriate method for separating a large quantity of a mixture of nonvolatile, nonpolar organic compounds would be__________?
The most appropriate method for separating a large quantity of a mixture of nonvolatile, nonpolar organic compounds would be__________?
A. Distillation
B. Extraction
C. Gas chromatography
D. Column chromatography
The relatively high energy of the gauche conformation of butane is primarily associated with_________?
The relatively high energy of the gauche conformation of butane is primarily associated with_________?
A. Angle strain
B. Torsional strain
C. Steric strain
D. Orbital strain
When an aldehyde is reacted with hydrogen cyanide a ” Cyanihydrin” is formed. This process is best termed as __________?
When an aldehyde is reacted with hydrogen cyanide a ” Cyanihydrin” is formed. This process is best termed as __________?
A. Electrophilic addition
B. Electrophilic substitution
C. Nucleophilic addition
D. Necleophilic substitution
Which of the following solvents would best facilitate an SN2 substitution reaction?
Which of the following solvents would best facilitate an SN2 substitution reaction?
A. Water
B. Hexane
C. Dimethylflormamide
D. Ethanol
In a molecule of carbon monoxide, what are the formal charges on the two atoms?
In a molecule of carbon monoxide, what are the formal charges on the two atoms?
A. Carbon=0, Oxygen=0
B. Carbon= +1, Oxygen= -1
C. Carbon= -1, Oxygen= +1
D. Carbon=0, Oxygen= -1
Which of the following aqueous solutions would have the highest boiling point?
Which of the following aqueous solutions would have the highest boiling point?
A. 0.20 m glucose
B. 0.20 m NaCl
C. 0.15 m CaCl2
D. 0.25 m sucrose
The mass of 3.2 moles of ammonia (NH3) gas?
The mass of 3.2 moles of ammonia (NH3) gas?
A. 53.4 grams
B. 54.4 grams
C. 55.4 grams
D. 56.4 grams