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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

In a molecule of carbon monoxide, what are the formal charges on the two atoms?

July 26, 2021January 8, 2020 by admin
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

Categories Chemistry Mcqs

Which of the following aqueous solutions would have the highest boiling point?

July 26, 2021January 8, 2020 by admin
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

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

The heat required to raise the temperature of body by 1 K is called___________?

July 26, 2021January 8, 2020 by admin
The heat required to raise the temperature of body by 1 K is called___________?

A. specific heat
B. thermal capacity
C. water equivalent
D. None of the above

Categories Chemistry Mcqs

The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is___________?

July 26, 2021January 8, 2020 by admin
The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is___________?

A. 2.05 gram
B. 3.05 gram
C. 4.05 gram
D. 5.05 gram

Categories Chemistry Mcqs
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