Class X

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
Which is denatured spirit?
  1. ethanol only
  2. ethanol and methanol (50%)
  3. ethanol and methanol (5%)
  4. methanol only
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.
The by product of soap is
  1. isoprene
  2. glycerol
  3. butene
  4. ethylene glycol
The isomeric pair is
  1. ethane and propane
  2. propane and butane
  3. ethane and ethane
  4. butane and 2-methyl propane
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