1 : Stability of alkadienes in the order in the descending order
Options:
  1. Isolated diene,cumulated diene,conjugated diene
  2. Cumulated,conjugated,Isolated
  3. Conjugated,cumulated,Isolated
  4. Conjugated,Isolated,cumulated

Answer: Option 4

Explanation:

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2 : The alkene that will give the same product with HBr in the absence as well as presence of peroxide is ----------
Options:
  1. But-2-ene
  2. But-1-ene
  3. Propene
  4. Hex-1-ene

Answer: Option 1

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3 : Which one of the following has the lowest boiling point?
Options:
  1. 2-methyl butane
  2. 2-methyl propane
  3. 2,2-Dimethylpropane
  4. Pentane

Answer: Option 2

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4 : Main constituent of LPG is -------
Options:
  1. methane
  2. hydrogen,methane
  3. Isobutane and butane
  4. all of the above

Answer: Option 3

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5 : Reaction of one molecule of HBr with one molecule of 1,3 di-butane at 40 degree celsius gives predominantly
Options:
  1. 3-bromobutene under thermodynamically controlled condition.
  2. 1-bromo-2-butene under kinetically controlled conditions.
  3. 3-bromobutene under kinetically controlled conditions.
  4. 1-bromo-2-butene under thermodynamically controlled condition.

Answer: Option 2

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6 : N-propyl bromide on treatment with ethanolic potassium hydroxide produces
Options:
  1. propane
  2. propene
  3. propyne
  4. propanol

Answer: Option 2

Explanation:

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7 : Household gaseous fuel (LPG) mainly consists of
Options:
  1. CH4
  2. C2H2
  3. C2H4
  4. C4H10

Answer: Option 4

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8 : Which is most readily nitrated
Options:
  1. benzene
  2. phenol
  3. aniline
  4. nitrobenzene

Answer: Option 2

Explanation:

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9 : Most common reactions of benzene and its derivatives are
Options:
  1. electrophilic addition reaction
  2. electrophilic substitution reaction
  3. nucleophilic addition reaction
  4. nucleophilic substitution reaction

Answer: Option 2

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10 : Toluene on oxidation with dilute HNO3 and alkaline KMnO4 gives
Options:
  1. benzaldehyde
  2. phenol
  3. nitrotoluene
  4. benzoic acid

Answer: Option 4

Explanation:

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