Class X

. 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 only soluble in
  1. non-polar solvents
  2. polar solvents
  3. metallic solvents
  4. non-metallic solvents
First antiseptic used in operation theatre was
  1. alcohol
  2. alkane
  3. acid
  4. phenol
Almost 95% of compounds are of carbon because it can form
  1. single bonds
  2. double bonds
  3. triple bonds
  4. multiple bonds
Natural gas mostly consists of
  1. ethane
  2. butane
  3. methane
  4. pentane
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