ECAT Chemistry Online Test With Answers

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ECAT Chemistry Online Test

Sr. # Questions Answers Choice
1 Source of organic compounds primarily is: Plants Animals Minerals A & B
2 Number of isomers of butane are: One Two Three Four
3 type of hybridization in CH≡CH is: sp sp<sup>2</sup> sp<sup>3</sup> dsp<sup>2</sup>
4 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
5 Which gasoline is better? Of low boiling point Of low molecular mass Of high octane All of these
6 Products of coal is: Peat Lignite Bituminous coal All above
7 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
8 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>
9 Linear geometry is present in: Sp<sup>3</sup> Sp<sup>2</sup> Sp D<sup>2</sup>sp<sup>3</sup>
10 General formula of carbocyclic acids is: RCOH RCOR RCOOR R-OH
11 Diversity of organic compounds in millions is: Four Five Six Seven
12 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>
13 Tetraethyle lead causes disease: Typhoid Respiratory Stomach Muscular
14 Types of cracking are: Thermal Catalytic Steam All a, b ,c
15 Cracking products are : Only alkanes Only alkenes Alkanes and alkenes Alkynes
16 At present oil refineries in Pakistan are: One Two Three Four
17 Major component of natural gas is: Ethane Ethene Propane Methane
18 Geographical survey of Pakistan estimates about billion tons of coal in Pakistan: 182 183 184 185
19 Fossil fuels consist of : Coal Natural gas Petroleum All of these
20 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
21 Ether show the phenomenon of : Position isomerism Functional group isomerism Metamerism Cis-trans isomerism
22 A double bond consists of: Two sigma bonds One sigma and one pi bonds One sigma and two pi bonds Two pi bonds
23 Linear shape is associated with set of hybrid orbitals? sp sp2 sp3 dsp2
24 The chemist who synthesized urea form ammonia cyanate was: Berzelius Kolbe Wohler Lavoiser
25 Which set of hybrid orbitals has planar triangle shape? sp<sup>3</sup> sp sp<sup>2</sup> dsp<sup>2</sup>
26 In t-butyl alcohol, the tertiary carbon is bonded to: Two hydrogen atom Three hydrogen atoms One hydrogen atoms No hydrogen atoms
27 The state of hybridization of carbon atom in methane is: sp<sup>3</sup> sp<sup>2</sup> sp dsp<sup>2</sup>
28 Transition elements are called so because: Form interstital sompounds have high m.p In between 's' and' 'p' block elements All of these
29 f-block elements are called : Alkali metal Alkakline earth metals Transition elements Electron deficient elements
30 d-block elements are also called : alkali metal Alkaline earth metals Transition elements Electron deficient elements
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