Bakelite is formed by the condensation of:
- AUrea and formaldehyde
- BPhenol and formaldehyde
- CPhenol and acetaldehyde
- DMelamine and formaldehyde
- ENone of the above/More than one of the above
Show answer and explanation
Correct answer: (b) Phenol and formaldehyde
Explanation
Bakelite is made by condensation polymerisation of phenol and formaldehyde. It was the first fully synthetic plastic, made by Leo Baekeland in 1907.
It is a thermosetting plastic: once set, it does not soften on heating, so it is used for electrical switches, plugs and cooker handles. Urea–formaldehyde and melamine–formaldehyde are different resins.