Class X

Which is denatured spirit?
  1. ethanol only
  2. ethanol and methanol (50%)
  3. ethanol and methanol (5%)
  4. methanol only
Butanone is a four-carbon compound with the functional group
  1. carboxylic acid.
  2. aldehyde.
  3. ketone.
  4. alcohol.
Which of the following represents alkynes?
  1. -C−C-
  2. -C=C-
  3. -C≡C-
  4. none of these
Soaps are formed by saponification of
  1. alcohols
  2. glycosides
  3. simple esters
  4. carboxylic acids
The by product of soap is
  1. isoprene
  2. glycerol
  3. butene
  4. ethylene glycol
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