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
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
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 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 heat energy produced when the human body metabolises 1 gram of fat is__________?
(A) 30 KJ
(B) 1 KJ
(C) 39 KJ
(D) 29 KJ
The Latin word formica means ant. The name formic acid is derived from this Latin word because__________?
(A) this acid, in ancient times, was used to eliminate ant-hills
(B) this corrosive acid is secreted by ants to drive away their enemies
(C) this acid was first obtained by the distillation of ants
(D) ants are attracted by the odour of this acid
The octane number of zero is assigned to____________?
(A) 2-methyl octane
(B) n-heptane
(C) iso-octane
(D) 3-methyl octane
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
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
The most commonly used bleaching agent is_________?
(A) alcohol
(B) carbon dioxide
(C) chlorine
(D) sodium chlorine