MDCAT Chemistry Chapter 13 Fundamental principles of organic chemistry Online Test With Answers

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MDCAT Chemistry Chapter 13 Fundamental principles of organic chemistry Online Test

Sr. # Questions Answers Choice
1 Hydration of ethene is an example of Electrophilic addition Electrophilic substitution Nucleophilic addition Nucleophilic substitution
2 Ethyl and methyl groups are equidistant in a chain, the preference is given to? Ethyl methyl both ethyl and methyl methyl mostly
3 Tertiary alcohols are the easiest to dehydrate because They form stable carbocation They have less hydrogen They have bigger size They are polar
4 The reaction of alkyl halide in the presence of alcoholic KOH is Substitution Addition Acid-base Elimination
5 Which group activates the benzene ring -COOH -COR -CHO -OH
6 Benzene reacts with Ethyl chloride in presence of AICls to give Benzalchloride Benzyl chloride Ethyl benzene Benzotrichloride
7 Ethene can give all of the following reactions except Addition Free radical substitution Hydrohalogenation Hydration
8 Active sulphonating agent during sulphonation of benzene is SO2 SO3 SO3H SO3+
9 Glyoxal molecule has? two carbonyl groups One aldehydic and one carbonyl group Two aldehydic groups Two carboxyl group
10 Ethane when completely halogenated in excess of chiorine can form Hexachloroethane Dichloroethane Pentachloroethane 1.1.2.2-terachloroethane
11 The origin ofacidic nature of alkyne is? small size of C Small size of H polarity of triple bond sp hybridization
12 A compound that has a nucleophilic carbon? C2H2 C2H4 C3H8 C6H6
13 The addition of HCI to ethene gives? Chloroethane 1,2-dichloroethane 1.1-dichloroethane 2-chloroethane
14 The reaction that generates an ionic bond is Halogenation of ethene polymerization of ethene Hydrogenation of ethyne Reaction of ethyne withs sodamide
15 Acetylide can give back ethyne upon treatment with water strong base dil. Acid weak base
16 2,5-dimethyl-1-hexene has Two sp2 hybridized carbons Six sp2 hybrid carbons Two double bonds Four pi electrons
17 The angle between the unhybridized 2pz orbital and the three sp2 hybrid orbitals in ethene is 180° 120° 90° 60°
18 Substituted phenyl group are called Arene groups Alkyl groups Aryl groups Acyl groups
19 Which of the following is not an electrophilic substitutional reaction of benzene? Free radical chlorination of benzene Friedel Craft alkylation Sulphonation Nitration
20 Aniline is the derivative of the benzene containing the Hydroxyl group Amino group Amido group Imido group
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