Civil Services Prep

Prelims 2013 · Economy · Question 63

With reference to the usefulness of the by-products of sugar industry, which of the following statements is/are correct?<br/>1. Bagasse can be used as biomass fuel for the generation of energy.<br/>2. Molasses can be used as one of the feedstocks for the production of synthetic chemical fertilizers.<br/>3. Molasses can be used for the production of ethanol.<br/><br/>Select the correct answer using the codes given below:

  1. 1 only
  2. 2 and 3 only
  3. 1 and 3 only
  4. 1, 2 and 3

Answer

1 and 3 only

1. Bagasse can be used as biomass fuel for the generation of energy. — Correct. Bagasse, the fibrous residue after crushing sugarcane, is widely used in cogeneration plants to produce steam and electricity.

2. Molasses can be used as one of the feedstocks for the production of synthetic chemical fertilizers. — Incorrect. Molasses is mainly used in alcohol/ethanol production, cattle feed and some fermentation industries; synthetic chemical fertilizers are generally produced from mineral or petrochemical feedstocks, not molasses.

3. Molasses can be used for the production of ethanol. — Correct. Molasses is a standard feedstock for ethanol production in sugar-based distilleries.

Hence, statements 1 and 3 only are correct.

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