ECAT Chemistry Chapter 18 Fundamental Principles of Organic Chemistry Online Test With Answers

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ECAT Chemistry Chapter 18 Fundamental Principles of Organic Chemistry Online Test

Sr. # Questions Answers Choice
1 The formula of esters is
2 Gasoline is a mixture of hydrocarbons containing carbon atoms 5 to 10 5 to 8 5 to 12 5 to 11
3 The functional group of acid amide is
4 Organic compounds generally react at ______ rates Slow Fast Moderate None of them
5 Compounds having the same molecular formula, but different functional groups show Metamerism Position isomerism Chain isomerism Functional group isomerism
6 Closed chain compound can be classified into Homocyclic Hetrocyclic Aliphatic Both a and b
7 Benzene is an example of Aromatic compound Cyclic compound Aliphatic compound A cyclic compound
8 The quality of petroleum is determined by Decane number Octane number Nexane number None of these
9 The open chain compounds are also called Aliphatic Alicylic Aromatic Both a and b
10 Those compound which have any atom other than C as member of rings are called as Monocyclic Hetrocyclic Aliphatic Both a and b
11 Compounds having same molecular formula but different structures are said to be Monomers Isomers Metamers Tautomers
12 Wohler succeeded in obtaining, urea from Cyanogen Ammonium cyanate Ammonium hydroxide None of these
13 The open chain compounds are also called Aliphatic Alicylic Aromatic Both a and b
14 The branch of chemistry which deals with the study of compounds containing carbon as an essential elements is called Physical Inorganic Nuclear Organic
15 Similarity in properties of different organic compounds give rise to the under standing of ______ Polymerization Non-polar nature Homologous series Isomerism
16 Ether shows the phenomenon of position isomerism Chain isomerism Metamerism Cir-trans isomerism
17 Cracking normally gives smaller ______ Alkanes Alkenes Alkynes Both a and b
18 Linear shape is associated with which set of hybrid orbitals sp sp<sup>2</sup> sp<sup>3</sup> dsp<sup>2</sup>
19 The chemist who synthesized urea from ammonium cyanate was Berzelius Kolbe Wholer Lavoisier
20 Which set of hybrid orbitals has planar triangular shape sp<sup>3</sup> sp sp<sup>2</sup> dsp<sup>2</sup>
21 In ter-butyl alcohol, the tertiary carbon is bonded to Two hydrogen atoms Three hydrogen atoms One hydrogen atoms No hydrogen atom
22 The state of hybridization of carbon atom in methane is sp<sup>3</sup> sp<sup>2</sup> sp dsp<sup>2</sup>
23 1-butene an 2-butene are an example of Chian isomerism Positional isomerism Metamerism Functional group isomerism
24 Which is the chain isomer of n-pentane Isopentane Neopentene N-pentene Isopentene
25 The functional group isomer of dimethylether is Ethyl alcohol Propyl alcohol Diethyl ether Butyl alcohol
26 n-butane and iso butane are an example of Chain isomerism Positional isomerism Meta merism Functional group isomerism
27 Alkynes normally have ______ hybridization Sp Sp<sup>2</sup> SP<sup>3</sup> d sp<sup>3</sup>
28 Carboxylic acid, ester, amide and amino groups are shown. Which is the correct description of these functional groups
29 Which one of the followings is a heterocyclic compound Cyclohexanol Phenol Pyridine Anthracene
30 The use of tetra ethyl lead in petrol as an efficient antiknock agent is being discouraged. Which reason is correct It is costly It damages the engine Pb is difficult to obtain in bulk quantities The combustion product, lead, causes air pollutions
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