ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons Online Test With Answers

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ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons Online Test

Sr. # Questions Answers Choice
1 Th IUPAC name of the compound having formula (CH3) 3 C - CH = CH2 is 1, 1-Dimethyl-3-butene 1,1,1-Trimethyl-3-propene 3,3,-Dimenthyl-1-butene 3,3,3,-Trimethyl-1-propene
2 Which of the following substances is used as an antiknock compound? Tetraethyl lead Lead tetrachloride Lead acetate Ethyle acetate
3 The order of reactivity of halogens in aliphatic substitution reactions is Br2 > C12 > F2 C12 > Br2 > F2 C12 C12 > Br2 F2 > Br2 > C12
4 Acetylene gives White ppt. with ammonical AgNO3 and red ppt. with ammonical Cu(NO3)2 White ppt. with ammonical AgNO3 and red ppt. with ammonical Cu2C12 White ppt. with both Red ppt. with both
5 During nitration of benzene, the active nitrating agent is NO3 NO2+ NO2- HNO3
6 Amongst the following the compound that can be most readily sulphonated is Toluene Benzene Nitrobenzene Chlorobenzene
7 Benzene does not undergo Substitution reaction Addition reaction Oxidation reaction Elimination reaction
8 Aromatic hydrocarbons are the derivatives of Normal series of paraffins Alkene Benzene Cyclohexane
9 The benzene molecule contains Three double bonds Two double bonds One double bonds Delocalizedπ-electron charge
10 A single benzene ring can have ______ ortho position maximally One Two Three Four
11 Which of the following is not an ortho-para directing group
12 Which of the following is an ortho-para directing group
13 Which of the following is not an electrophitic substitution reaction of benzene Nitration Sulphonation Fridel-Craft alkylation Free radical chlorination of benzene
14 Which of the following reaction is characteristic of benzene Electrophilic substitution reaction Reduction Oxidation Ozonolysis
15 Preparation of ethylbenzene by the reaction of bromobenzene, ethylbromide and sodium is called Wurtz reaction Fitting reaction Wurtz fitting reaction None of these
16 When sodium benzoate is treated with soda lime (NaOH) benzene is formed. What is the other product Na<sub>2</sub>CO<sub>3</sub> NaHCO<sub>3</sub> Ca(OH)<sub>2</sub> CaCO<sub>3</sub>
17 The carbon, carbon bond length in benzene is 1.54A° 1.34A° 1.20A° 1.39A°
18 Cyclohexane can be converted not benzene in the presence of Pt at 100°C Pt at 250°C Pd at room temperature Pt at room temperature
19 2-bromonitrobenzene 2-nitrobromobenzene 1-bromonitrobenzene 1-nitrobromobenzene
20 Introduction of a second methyl group in methylbenzene will give how many isomeric dimethyllenzenes 2 1 3 4
21 Which of the following is not aromatic hydrogencarbon Benzene Naphthalene Toluene Cyclohexene
22 The simplest and the parent members of aromatic hydrocarbon is Benzene Toluene Biphenyis Naphthalene
23 The order of dehydration of alcohol 10&gt; 20&gt; 30 10&gt; 30&gt; 20 20&gt; 30&gt; 10 30&gt; 20&gt; 10
24 4-methyl pentene 2-methyle-1-butene 2-methyl propane None of the above
25 De halogenatiion of tetrahalides happens in the presence of active metal like Zn Mg Both a and b None of them
26 The four bonds of carbon in methane are directed towards the corners of Cube Pentagon Hexagon Tetrahedron
27 The next homologue of C10H22will be C<sub>9</sub>H<sub>20</sub> C<sub>12</sub>H<sub>26</sub> C<sub>11</sub>H<sub>24</sub> C<sub>13</sub>H<sub>28</sub>
28 Which one of the following gases is used for artificial ripening of fruits Ethene Ethane Methane Propane
29 Synthesis of rubber is made by polymerization of Chloroform Acetylene Divinylacetylene Butene
30 The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with the rule Hund's rule Markowvikov's rule Pauli's exclusion principle Auf ban principle
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