Chemistry · Applied Chemistry

Which one of the following best explains the principal reason why tetraethyl lead was historically added to petrol used in spark-ignition engines?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1To function as an oxygenating agent for ensuring more complete combustion of fuel.
2To increase the miscibility of petrol with ethanol in blended fuel formulations.
3To reduce the sulphur content of petrol and thereby lower sulphur dioxide emissions.
4To improve the anti-knock quality of petrol by raising its effective octane performance.✓

Correct answer

To improve the anti-knock quality of petrol by raising its effective octane performance.

Save this question and verified answer as a clean study sheet with live clickable link.

👥

Challenge your peer aspirants on WhatsApp or Telegram to solve this question!

Online Test Series

Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.

Chapter Practice

Want more practice questions on Applied Chemistry?

Solve complete topic-wise tests with detailed solutions on GkGet.

Recommended practice questions in Chemistry · Applied Chemistry

The Dandi March, also known as the Salt Satyagraha, was led by which influential leader?

Which act formally granted independence to India, marking the end of British rule?

Who was the key figure in establishing the Indian National Congress?

Related Practice Questions