E-100 pilot project, launched in Pune in June 2021, is related to the production and distribution of

Correct — B, ethanol. The E-100 pilot project was launched at Pune on 5 June 2021, World Environment Day, as a demonstration of a full chain for producing, storing and distributing ethanol as a motor fuel. It was announced alongside the report of the expert committee on the roadmap for ethanol blending, and alongside the decision to advance the target of 20 per cent ethanol in petrol from 2030 to 2025-26. The name is the giveaway once the convention is known: E followed by a number denotes the percentage of ethanol in the blend, so E-10 is a tenth ethanol and E-100 is the fuel in undiluted form.

• (a)COVID vaccine — The vaccination drive of mid-2021 was a separate programme entirely, run under a national policy rather than as a fuel pilot in one city, and nothing in it was called E-100.
• (c)electric vehicle — Electric mobility of that period ran under the FAME scheme and the production-linked incentives for batteries. Ethanol blending is a distinct route to cutting oil imports, and it uses the existing engine and pump network.
• (d)ethane — Ethane is a gaseous hydrocarbon used as a petrochemical feedstock, not a blending fuel for cars. The similarity of the names is the whole trap, and one letter separates them.

Ethanol blending serves three aims at once — it trims the crude oil import bill, it gives sugar mills and grain producers a second market, and it lowers some tailpipe emissions relative to neat petrol. India makes fuel ethanol chiefly from sugarcane molasses and cane juice, with maize and surplus rice added later as feedstocks. The pilot at Pune was about the part of the chain that is usually invisible, namely storage and retail distribution.

This is a name-decoding question as much as a current-affairs one. Reading the E number as a blend percentage disposes of the vaccine and the electric vehicle at once and leaves only the ethane trap. Since the exam the programme has moved a long way — the 20 per cent target was met far ahead of its original 2030 date, and E20 petrol is now the standard grade at pumps across the country, which has brought its own debate about older engines.

• The E-100 pilot was launched at Pune on 5 June 2021, World Environment Day.
• E numbers denote the ethanol share of a fuel blend, so E-10 is 10 per cent and E-20 is 20 per cent.
• The 20 per cent blending target was advanced from 2030 to 2025-26.
• Fuel ethanol in India comes chiefly from sugarcane molasses and juice, with maize and surplus grain added later.
• Blending reduces crude imports and gives sugar mills an alternative to a saturated sugar market.

• Reading E-100 as a hundredth rather than a hundred per cent.
• Confusing ethane with ethanol on a single letter.

A current-affairs item that can be decoded from the name itself if the E-number convention is known.

No directly related past PYQ was found.

• practice — not a real PYQ

  In E-20 petrol, the number 20 denotes

  • (a)The octane rating
  • (b)The percentage of ethanol in the blend
  • (c)The number of States where it is sold
  • (d)The sulphur content in parts per million

  Answer(b) The percentage of ethanol in the blend — E numbers always give the ethanol share.

• practice — not a real PYQ

  Fuel ethanol in India is produced mainly from

  • (a)Sugarcane molasses and juice
  • (b)Crude petroleum fractions
  • (c)Coal gasification
  • (d)Natural gas

  Answer(a) Sugarcane molasses and juice — with maize and surplus grain permitted as additional feedstocks later.