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Chemistry Mcqs

The most appropriate method for separating a large quantity of a mixture of nonvolatile, nonpolar organic compounds would be__________?

July 26, 2021January 8, 2020 by admin
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

Categories Chemistry Mcqs

The relatively high energy of the gauche conformation of butane is primarily associated with_________?

July 26, 2021January 8, 2020 by admin
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

Categories Chemistry Mcqs

When an aldehyde is reacted with hydrogen cyanide a ” Cyanihydrin” is formed. This process is best termed as __________?

July 26, 2021January 8, 2020 by admin
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

Categories Chemistry Mcqs

Which of the following solvents would best facilitate an SN2 substitution reaction?

July 26, 2021January 8, 2020 by admin
Which of the following solvents would best facilitate an SN2 substitution reaction?

A. Water
B. Hexane
C. Dimethylflormamide
D. Ethanol

Categories Chemistry Mcqs

The number of d-electrons in Fe2+ (Z = 26) is not equal to that of____________?

July 26, 2021January 8, 2020 by admin
The number of d-electrons in Fe2+ (Z = 26) is not equal to that of____________?

A. p-electrons in Ne(Z = 10)
B. s-electrons in Mg(Z = 12)
C. d-electrons in Fe(Z = 26)
D. p-electrons in CI(Z = 17)

Categories Chemistry Mcqs

The metallurgical process in which a metal is obtained in a fused state is called__________?

July 26, 2021January 8, 2020 by admin
The metallurgical process in which a metal is obtained in a fused state is called__________?

A. smelting
B. roasting
C. calcinations
D. froth floatation

Categories Chemistry Mcqs

The molecules of which gas have highest speed?

July 26, 2021January 8, 2020 by admin
The molecules of which gas have highest speed?

A. H2 at -73oC
B. CH4 at 300 K
C. N2 at 1,027oC
D. O2 at 0oC

Categories Chemistry Mcqs

The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is___________?

July 26, 2021January 8, 2020 by admin
The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is___________?

A. Dalton’s law
B. Gay Lussac’s law
C. Henry’s law
D. Raoult’s law

Categories Chemistry Mcqs

The main buffer system of the human blood is____________?

July 26, 2021January 8, 2020 by admin
The main buffer system of the human blood is____________?

A. H2CO3 – HCO3
B. H2CO3 – CO32-
C. CH3COOH – CH3COO–
D. NH2CONH2 – NH2CONH+

Categories Chemistry Mcqs

The most commonly used bleaching agent is_________?

July 26, 2021January 8, 2020 by admin
The most commonly used bleaching agent is_________?

A. alcohol
B. carbon dioxide
C. chlorine
D. sodium chlorine

Categories Chemistry Mcqs
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