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Alkanes (Grades 11-12)

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Alkanes

1. 
Hydrogenation involves the production of ethane by reacting hydrogen with ethene. Classify ethene and ethane as being either saturated or unsaturated, and explain your answer.





 
2. 
Which of the following alkanes contains [math](CH_3)_2CH-[/math] group?
  1. 2, 2-Dimethylpentane
  2. 3,3-Dimethylpentane
  3. 2,3-Dimethylpentane
  4. 3,4-Dimethylhexane
3. 
A student named an alkane as 2-ethyl propane. The correct IUPAC name of the alkane is
  1. 2-Methylbutane
  2. 2,2-Dimethylbutane
  3. 2,3-Dimethylbutane
  4. 2,3-Dimethylpentane
 
4. 
Paraffin wax contains alkanes ranging from
  1. [math]C_5 to C_9[/math]
  2. [math]C_10 to C_15[/math]
  3. [math]C_16 to C_20[/math]
  4. [math]C_21 to C_30[/math]
5. 
An alkane is obtained by decarboxylation of sodium propionate. Same alkane can be obtained by
  1. catalytic hydrogenation of propene
  2. action of sodium metal on iodomethane
  3. reduction of 1-chloropropane
  4. reduction of bromomethane
 
6. 
Which of the following alkanes is liquid at room temperature?
  1. [math]C_4H_10[/math]
  2. [math]C_10H_22[/math]
  3. [math]C_22H_46[/math]
  4. [math]C_46H_94[/math]
7. 
Which of the following alkanes cannot be prepared by Wurtz reaction?
  1. Methane
  2. Ethane
  3. Propane
  4. Butane
 
8. 
Which of the following is aliphatic saturated hydrocarbon?
  1. [math]C_6H_6[/math]
  2. [math]C_6H_10[/math]
  3. [math]C_6H_12[/math]
  4. [math]C_6H_14[/math]
9. 
Which of the following represents a saturated hydrocarbon?
  1. ethene
  2. butane
  3. propyne
  4. methanol
 
10. 
Which of the following conversions is an example of substitution reaction?
  1. Acetylene [math]rarr[/math] Ethane
  2. Sodium acetate [math]rarr[/math] Methane
  3. Propylene [math]rarr[/math] Propane
  4. Ethane [math]rarr[/math] Chloroethane

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