Class XII

The aldehydes and ketones undergo one of the following reactions.
  1. nucleophilic addition reactions
  2. substitution reaction
  3. None of these
  4. electrophilic addition reactions
Arrange the following sets of compounds in order of their increasing boiling points : Pentan – 1 – ol, butan – 1 – ol, butan – 2 – ol, ethanol, propan – 1 – ol, methanol
  1. Butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanol, propan – 1 – ol,
  2. Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol.
  3. Propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanol
  4. Pentan – 1 – ol Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol,
Arrange the following compounds in decreasing order of their acid strength: i) trichloroacetic acid ii) trifluoroacetic acid iii) acetic acid and iv)formic acid
  1. trifluoroacetic acid, trichloroacetic acid, formic acid and acetic acid
  2. trifluoroacetic acid, trichloroacetic acid, formic acid.and acetic acid
  3. trichloroacetic acid, trifluoroacetic acid, acetic acid and formic acid.
  4. trifluoroacetic acid, formic acid acetic acid and Propan – 1 – ol, 4 – methylphenol
The compound obtained when acetaldehyde reacts with dilute aqueous sodium hydroxide exhibits:
  1. both optical and geometrical isomerism
  2. optical isomerism.
  3. geometrical isomerism
  4. neither optical nor geometrical isomerism
Arrange the following alcohols, hydrocarbon and ether in order of their increasing boiling points Pentan – 1 – ol, n – butane, pentanal, ethoxyethane.
  1. ethoxyethane, pentanal and pentan – 1 – ol, n – Butane
  2. pentan – 1 – ol , n – Butane, ethoxyethane, pentanal
  3. n – Butane, ethoxyethane, pentanal and pentan – 1 – ol.
  4. pentanal and pentan – 1 – ol, n – Butane, ethoxyethane``4444444444444444444444444444444444444`````````````````````````````````````````````````````````````````````
Time Elapsed

HR : MIN : SEC
Question Answered
0
Score out of 100
0

Get Started!

we provide the best
services to our students

AmazingCounters.com Views

 

LKG - 12th

Rs 1,999  Annual
Plan
TOP