Question

what are the products formed when 1-butanol reacts with hot concentrated sulphuric acid

Answer 1

1-butanol or simply butanol undergoes dehydration when treated with Conc H2SO4. At this temperatures, each molecule of alcohol loses a water molecule and give butene as a product (C4H8).

C4H9-OH + conc. H2SO4 --> C4H8 + H20

Answer 2

When 1-butanol ( C$_{4}$H$_{9}$OH ) is treated with hot concentrated sulphuric acid ( H$_{2}$SO$_{4}$ ) , 1-Butene ( C$_{4}$H$_{8}$ ) is formed .

C$_{4}$H$_{9}$OH + H$_{2}$SO$_{4}$  =>  C$_{4}$H$_{8}$ + H$_{2}$O

• Concentrated sulphuric acid ( H$_{2}$SO$_{4}$ ) acts as a dehydrating agent .
• Due to dehydration , the butanol loses a water molecule .
• The molar mass of 1-butene is 56.108 g·mol−1 . It is used for the production of polyethylene .