Class X

The by product of soap is
  1. isoprene
  2. glycerol
  3. butene
  4. ethylene glycol
Which of the following can be used for the denaturation of ethyl alcohol?
  1. Methyl alcohol
  2. Pyridines
  3. Copper sulphate
  4. All of above
Which of the following is used to oxidise ethanol to ethanoic acid?
  1. Alkaline KMnO4
  2. Conc. H2SO4
  3. Acidified K2Cr2O7
  4. All of above
Covalent compounds
  1. have high melting and boiling point
  2. are mostly soluble in water
  3. are formed between atoms of metals and non-metals
  4. are formed by the sharing of electrons in the bonding atoms.
Which is denatured spirit?
  1. ethanol only
  2. ethanol and methanol (50%)
  3. ethanol and methanol (5%)
  4. methanol only
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