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 Multiple Choice QuestionsMultiple Choice Questions

131.

CO2 gas obtained by the combustion of 12 mL butane gas is

  • 3 mL

  • 12 mL

  • 24 mL

  • 48 mL


132.

LPG is a mixture of

  • C6H12 + C6H6

  • C4H10 + C3H8

  • C2H4 + C2H2

  • C2H4 + CH4


133.

Alkene which on ozonolysis yields acetone, is

  • CH2=CH-CH2-CH3

  • CH3-CH=CH2

  • CH3-CH=CH-CH3

  • (CH3)2-C=C-(CH3)2


134.

In chlorination benzene, the reactive species is

  • Cl+

  • Cl-

  • Cl2

  • Cl2-


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135.

The number of moles of proton which can be easily given by butyne-1 (1 mole) is

  • 1

  • 2

  • 3

  • 6


136.

The addition of HBr is easiest with

  • CH2=CHCl

  • ClCH=CHCl

  • CH3-CH=CH2

  • (CH3)2C=CH2


137.

The reaction

CH2 = CH2 + H2 250 - 300°CNi CH3-CH3 is called

  • Wurtz reaction

  • Kolbe's reaction

  • Sabatier-Senderens reaction

  • Carbylamine reaction


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138.

Formation of 2-butene as major product by dehydation of 2-butanol is according to

  • Markownikoff's rule

  • Saytzeff's rule

  • Peroxide effect

  • Anti-Markownikoffs rule


B.

Saytzeff's rule

Reaction of dehydration of 2-butanol is given below

Saytzeffrule states that "If alternate conditions exists H-atom eliminated fromsuch carbon atom which has minimum number of hydrogens.


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139.

Acetic acid dissolved in benzene shows molecular weight

  • 60

  • 120

  • 180

  • 240


140.

Ethene gives with acidic KMnO4 solution

  • ethylene glycol

  • ethylene oxide

  • formaldehyde

  • acetaldehyde


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