Class X

Alkanes (saturated hydrocarbons) have density
  1. less than water
  2. equal to water
  3. more than water
  4. more than mercury
Alkanes that contain 5 to 17 atoms are in
  1. solid state
  2. liquid state
  3. gaseous state
  4. plasma state
Red color of tomatoes is due to alkene named
  1. ethene
  2. propene
  3. lycopene
  4. butene
In alkanes (saturated hydrocarbons) each carbon atom forms
  1. 2 bonds
  2. 4 bonds
  3. 6 bonds
  4. 8 bonds
Reaction of halogens (Group-VII) and alkane (saturated hydrocarbons) in presence of sunlight is an example of
  1. carbation
  2. halogenation
  3. substitution
  4. hydrogenation
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