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 How many structural acid cis-trans isomers are there for dichloroprepe, C3H4Cl2 3 5 6 7
2 Cracking done at low pressure and with a catalyst is called _______ cracking Thermal Catalytic Steam None of them
3 A nuclophile must Be an atom A group of atoms Have a lone pair Be negatively charged
4 Which is not a nucleophile Benzene Chlorine Ethene Ethanol
5 Which of the following is an electrophile Bromine KBr NH<sub>3</sub> Benzene
6 Which is not the poplar reaction
7 A free radical reaction takes place in three steps, initiation, propagation and terminations. Which of the following expression represents a propagation step
8 In a heterollytic bond fission reaction A molecule of H<sub>2</sub>O is formed A molecule of H<sub>2</sub>O is eliminated A free radical is formed A positive and a negative ion is formed
9 Which of the following expressions show a heterolytic bond fission
10 Which reaction produces a free radical SN reaction Homelytic fission reaction Heterolytic fission reaction Addition reaction
11 Which statement is true about a free radical An atom with a positive charge An atom with a negative charge An atom with a lone pair of electrons An atom with unpaired electron
12 Identify the heterocyclic compound Toluene Pyridine Butanoic acid Propenol
13 Which of the following is an aromatic compound Propanol Cyclohexane Acetone Benezene
14 Which of the following is not a hydrocarbon Butane Methyl benezene Acetylene Glucose
15 Which of the following pair contains isomers of each other Propanoic acid and propanone Acetone and acetaldehyde Ethyl alcohol and diethyl ether Methyl alcohol and dimethyl ether
16 Homologues differ from each other by an integral number of CH<sub>2</sub>groups CH<sub>3</sub>groups CH groups CH<sub>4</sub>groups
17 The catalyst,. which is used as specialist for cracking, are Aluminates Alumlnosilicates Aluminium slats All can be used
18 Quality of fuel is judged from its octane number. The best fuels are Straight chain hydrocarbons Branched chain hydrocarbons Cyclic compounds Compounds containing benzene ring
19 The percentage of methane in natural gas is 50% 60% 85% 90%
20 The major components of coal gas are Hydrogen and methane Ethane and carbon monoxide Nitrogen and ethane Ethane and carbon dioxide
21 Peat contains about 60% carbon 80% carbon 78% carbon 50% carbon
22 The gasoline with high octane No. has ______ More knocking Less knocking No knocking Only knocking
23 Catenation is a process in which carbon shows the properties of making Multiple bonds Hybridization Long chains or rings of carbon atom Showing isomerism
24 Due to the bacterial action on wood it is converted into Peat Lignite Bituminous coal Anthracite
25 Select from the following the one which alcohol
26 A double bond consists of Two sigma bonds One sigma and one Pi bond One sigma and two Pi bonds Two Pi bonds
27 Alkanes normally have ______ hybridization Sp Sp<sup>2</sup> Sp<sup>3</sup> d sp<sup>3</sup>
28 Which of the following is a product of destructive distillation of coal Ammonia Coke Cyanides Kerosene
29 The distillation of coal at high temperature and in absence of air is called Vacuum distillation Normal distillation Fractional distillation Destructive distillation
30 The formula of ketone is None of these
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