CHM203

A. In electrophilic addition to alkenes, the electrophilic attack is on __________

B. Down the group, electronegativity

C. In keto-enol tautomers, the tautomer that predominates is __________

D. The substitution of an acyl group into an aromatic ring by the reaction with an acid chloride in the presence of Lewis acid is called ____________

E. The method of reduction of the carbonyl group of ketone produced by Friedel - craft is __________

F. The types of geometric isomers are trans and __________

G. The type of tautomerism which involves a shift in interatomic distance within a molecule, without the separation of any atom from the rest of the molecule , as an intermediate stage is called ____________

H. The amount of substance dissolved in a certain amount of solvent is referred to as ___________

I. In terms of steric effect,  conformational isomer is __________ more stable.

J. Reduction of benzene using Nickel at 425-525K and 25atm yields __________

K. The reaction in which aryl halides are formed from aromatic amines is called _________

L. Inductive effect is a type of ____________ effect

M. The process by which benzene and its derivatives are extracted from petroleum is called ___________

N. The definition of an acid as a proton donor was given by ________

O. Hydrogen no - bond resonance is otherwise called _____________

P. The benzenoid hydrocarbons in which two or more benzene rings are fused together at ortho position in such a way that each pair of rings shares rings shares two carbons are called ---------- benzenoid hydrocarbon.

Q. Sulphonation of benzene yields ___________

R. Branched chain hydrocarbons have lower __________ than their straight chain isomers.

S. The parent compound of polynuclear hydrocarbons is ___________

T. Tautomers which differ from each other only in the location of a hydrogen atom and a double bond are called ____________

U. The major product in the nitration of nitrobenzene is ____________

V. There are ---------- resonance structures of benzene

W. The number or π-electrons in benzene is _____________

X. Fused benzenoid hydrocarbon with three benzene rings is ________

Y. A benzenoid hydrocarbon in which two benzene rings are fused together at the ortho position is called ____________

Z. In terms of steric effect _________ geometric isomer is more stable.

AA. Two factors that affect the boiling point of a substance are ________ and _________

AB. Cyclohexane has _______ fewer hydrogens than nhexane.

AC. The presence of an aromatic ring in a compound is detected by ____________

AD. Oxidation of naphthalene under controlled condition yields ___________

AE. In terms of steric effect _________ geometric isomer is more stable.

AF. The E2 reactions of alkyl halides are favoured by the use of __________

AG. A change in molecular structure which affect the reactivity of the molecule by changing the electron distribution is called __________

AH. For halogen derivatives of aromatic compounds, boiling point ---------- with increase in atomic size of the halogen atom.

AI. The method of reduction of the carbonyl group of ketone produced by Friedel -crafts acylation is ------------ reduction.

AJ. Bleaching powder provides chlorine which oxidizes ethanol to _________.

AK. Hydrogenation of benzene at higher temperature and under pressure yields ________

AL. The influence of the inductive effect on acid strength is almost negligible after the __________ carbon in the chain.

AM. Unbranched isomer has higher _________ than branched isomer

AN. The extent to which acids transfer a proton to a standard base determines __________

AO. The rule that states that in a dehydrohalogenation reaction of alkyl halides, the major product will be the product that has the more alkyl groups attached to the resultant carbon - carbon double bond is __________ rule.

AP. The effect arising from the spatial interactions between the groups in a compound is called _____________

AQ. An example of Isolated Benzenoid Hydrocarbon is __________

AR. The dehydrohalogenation of alkyl halides yields __________

AS. The stronger an acid the ___________ is its conjugate base

AT. In terms of aromatization, naphthalene has ___________ π electrons

AU. The most widely used method for the preparation of alkyl halides is from __________

AV. Another name for methyl benzene is __________

AW. Naphthalene has ________ number of resonance hybrid structures

AX. A side reaction that occurs during substitution reactions of alkyl halides is _________

AY. The backbone of an organic molecule is __________

AZ. Reduction of benzene is by __________ of benzene.

BA. Fused benzenoid hydrocarbons with two benzene rings is _________

BB. The cannonical forms of  benzene were proposed by _____________

BC. Solubility of branched isomers is __________ than that of straight chain isomers