Which of the following is/are the characteristic/characteristics of Indian coal? 1. High ash content 2. Low sulphur content 3. Low ash fusion temperature Select the correct answer using the codes given below.

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Q: 86 (IAS/2013)
Which of the following is/are the characteristic/characteristics of Indian coal?
1. High ash content
2. Low sulphur content
3. Low ash fusion temperature

Select the correct answer using the codes given below.

question_subject: 

Geography

question_exam: 

IAS

stats: 

0,89,166,89,12,97,57

keywords: 

{'indian coal': [0, 0, 0, 1], 'characteristics': [0, 0, 0, 1], 'low sulphur content': [1, 0, 0, 1], 'high ash content': [0, 0, 0, 2], 'low ash fusion temperature': [0, 0, 0, 1]}

The correct answer is "1 and 2 only."

1. High ash content: Indian coal is known for its relatively high ash content. Ash is the residue left after the combustion of coal, and high ash content can reduce the calorific value and efficiency of coal.

2. Low sulfur content: Indian coal generally has a low sulfur content. Low sulfur content is desirable as it reduces the emission of sulfur dioxide (SO2) during coal combustion, which is a major contributor to air pollution and acid rain.

3. Low ash fusion temperature: The statement "Low ash fusion temperature" is incorrect. Indian coal is not characterized by a low ash fusion temperature. Ash fusion temperature refers to the temperature at which coal ash melts or fuses. The ash fusion temperature of coal can vary depending on its composition, but it is not specifically known for having a low ash fusion temperature.

Therefore, the correct answer is "1 and 2 only."

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