NAT I Engineering Chemistry With Answers

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NAT I Engineering Chemistry

Sr. # Questions Answers Choice
1 The reaction/method that does not give an alkane is Catalytic hydrogenation of alkanes Wurtz reaction Hydrolysis of alkyl magnesium bromide Dehydrohalogenation of an alkyl halid.
2 Which of the following method is most appropriate for the manufacture of methane? By reduction of CH2CL2 Wurtz reaction Liquification of natural gas None of these
3 The addition of HBr is easiest with CH2 = CHCI CICH = CHCI CH3 - CH = CH2 <span style="font-size: 14.44444465637207px;">(CH3)2 C = CH2</span>
4 In Friedal-Craft's alkylation besides AICI3 the other reactants are <span style="font-size: 14.44444465637207px;">C6H6 + NH3</span> <span style="font-size: 14.44444465637207px;">C6H6 + CH4</span> <span style="font-size: 14.44444465637207px;">C6H6 + CH3CI</span> <span style="font-size: 14.44444465637207px;">C6H6 + CH3COCI</span>
5 For preparing an alkane, a concentrated aqueous solution of sodium or potassium salt of saturated carboxylic acid is subjected to Hydrolysis Oxidation Hydrogenation Electrolysus
6 Octane number is zero for n-Heptane Isooctane n-Hexane Isoheptane
7 The IUPAC name of the compound having the formula (CH3) 3 C - CH = CH2 is 1, 1 -Dimethyl-3-butene 1,1,1-Trimethyl-3-propene 3,3,-Dimethyl-1-butene 3,3,3-Trimethyl-1-propene
8 Which of the following substances is used as an antiknock compound? Tetraethyl lead Lead tetrachloride Lead acetate Ethyl acetate
9 The order of reactivity of halogens in aliphatic substitution reactions is Br2 &gt; CI2 &gt; F2 CI2 &gt; Br2 &gt; F2 CI2 CI2 &gt; Br2 F2 &gt; Br2 &gt; CI2
10 The essential component of organic compound is O C P N
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