Class X

Alcohols (CnH2n+1OH) are formed by attachment of
  1. OH group to hydrocarbon chain
  2. HX group to hydrocarbon chain
  3. O to hydrocarbon chain
  4. H to hydrocarbon chain
Organic compounds are only soluble in
  1. non-polar solvents
  2. polar solvents
  3. metallic solvents
  4. non-metallic solvents
Saturated hydrocarbons (alkanes) have
  1. carbon-carbon single bond
  2. carbon-carbon double bond
  3. carbon-carbon triple bond
  4. carbon-carbon quad bond
. If we remove one hydrogen (H) atom from alkane (saturated hydrocarbon), we get
  1. alkyl group
  2. alkene group
  3. alkyne group
  4. aldehyde group
Organic compounds are
  1. non-volatile
  2. volatile
  3. have high melting point
  4. have high boiling point
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