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 Coal is used to bake bricks in lime kiln: 40% 60% 80% None of these
2 In the presence of high temperature and pressure peat is converted to: Lignite Polymorphism Polymerization Catenation
3 Self linkage of carbon to produce long chains isomerism Polymorphism Polymerization Catenation
4 Wohler synthesized first of all the organic compound: Carbohydrates Urea Aniline Toluene
5 Source of organic compounds primarily is: Plants Animals Minerals A & B
6 Number of isomers of butane are: One Two Three Four
7 type of hybridization in CH≡CH is: sp sp<sup>2</sup> sp<sup>3</sup> dsp<sup>2</sup>
8 Type of isomerism in BrCH=CHBr is: Structural isomerism <blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;">Conformational isomerism</blockquote> Geometrical isomerism Positional isomerism
9 Which gasoline is better? Of low boiling point Of low molecular mass Of high octane All of these
10 Products of coal is: Peat Lignite Bituminous coal All above
11 Functional group of ketones is: ---CHO ---CO--- ---C<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">≡ N</span> ---COOH
12 Angle 120° is observed in molecules : CH<sub>4</sub> CH<sub>3-</sub>CH<sub>3</sub> CH -CH CH<sub>2 =</sub>CH<sub>2</sub>
13 Linear geometry is present in: Sp<sup>3</sup> Sp<sup>2</sup> Sp D<sup>2</sup>sp<sup>3</sup>
14 General formula of carbocyclic acids is: RCOH RCOR RCOOR R-OH
15 Diversity of organic compounds in millions is: Four Five Six Seven
16 The general formula of saturated alicyclic hydrocarbons is: C<sub>n</sub>H<sub>n</sub> C<sub>n</sub>H<sub>2n</sub> C<sub>n</sub>H<sub>2n+2</sub> C<sub>n</sub>H<sub>2n-1</sub>
17 Tetraethyle lead causes disease: Typhoid Respiratory Stomach Muscular
18 Types of cracking are: Thermal Catalytic Steam All a, b ,c
19 Cracking products are : Only alkanes Only alkenes Alkanes and alkenes Alkynes
20 At present oil refineries in Pakistan are: One Two Three Four
21 Major component of natural gas is: Ethane Ethene Propane Methane
22 Geographical survey of Pakistan estimates about billion tons of coal in Pakistan: 182 183 184 185
23 Fossil fuels consist of : Coal Natural gas Petroleum All of these
24 Select from the following which one is alcohol? CH<sub>3</sub>-CH<sub>2</sub>-OH CH<sub>3</sub>-O-CH<sub>3</sub> CH<sub>3</sub>COOH CH<sub>2</sub>-CH<sub>2</sub>-BR
25 Ether show the phenomenon of : Position isomerism Functional group isomerism Metamerism Cis-trans isomerism
26 A double bond consists of: Two sigma bonds One sigma and one pi bonds One sigma and two pi bonds Two pi bonds
27 Linear shape is associated with set of hybrid orbitals? sp sp2 sp3 dsp2
28 The chemist who synthesized urea form ammonia cyanate was: Berzelius Kolbe Wohler Lavoiser
29 Which set of hybrid orbitals has planar triangle shape? sp<sup>3</sup> sp sp<sup>2</sup> dsp<sup>2</sup>
30 In t-butyl alcohol, the tertiary carbon is bonded to: Two hydrogen atom Three hydrogen atoms One hydrogen atoms No hydrogen atoms
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