Bright Tutorials Bright Tutorials
ICSE Class 10 Chemistry Question 5 of 10

Organic Chemistry - Unit Test Paper — Question 5

Back to all questions
5
Question

Question 5

Give balanced equations for the following conversions.

  1. An alkyne to an alkene.
  2. An alkene to an alkane.
  3. An alkane to an alcohol.
  4. An alcohol to an alkene.
  5. A carboxylic acid to an ammonium salt
Answer

1. An alkyne to an alkene:

H2C2 ethyne [acetylene]+H2→300°CNickleC2H4ethene\underset{\text{ ethyne [acetylene]}}{\text{H}_2\text{C}_2} + \text{H}_2 \xrightarrow[300\degree\text{C}]{\text{Nickle}} \underset{\text{ethene}}{\text{C}_2\text{H}_4}

2. An alkene to an alkane:

C2H4ethene+H2→300°CNickleC2H6ethane\underset{\text{ethene}}{\text{C}_2\text{H}_4} + \text{H}_2 \xrightarrow[300\degree\text{C}]{\text{Nickle}} \underset{\text{ethane}}{\text{C}_2\text{H}_6}

3. An alkane to an alcohol:

2C2H6 ethane+O2→200°CCu tube2C2H5OHethanol\underset{\text{ ethane}}{2\text{C}_2\text{H}_6} + \text{O}_2 \xrightarrow[200 \text{\degree C}]{\text{Cu tube}} \underset{\text{ethanol}}{2\text{C}_2\text{H}_5\text{OH}}

4. An alcohol to an alkene:

C2H5OH ethyl alcohol→170°CConc. H2SO4[excess]C2H4ethene+H2O \underset{\text{ ethyl alcohol}}{\text{C}_2\text{H}_5\text{OH}} \xrightarrow[170\degree\text{C}]{\text{Conc. H}_2\text{SO}_4\text{[excess]}} \underset{ \text{ethene}}{\text{C}_2\text{H}_4} + \text{H}_2\text{O}\

5. A carboxylic acid to an ammonium salt :

CH3COOH acetic acid+NH4OH⟶CH3COONH4Ammonium acetate+H2O \underset{\text{ acetic acid}}{\text{CH}_3\text{COOH}} + \text{NH}_4\text{OH}\longrightarrow \underset{ \text{Ammonium acetate}}{\text{CH}_3\text{COONH}_4} + \text{H}_2\text{O}\