Q. Consider the following applications of Guar Gum:
  1. Treating irritable bowel syndrome (IBS)
  2. Shale gas extraction
  3. Biofuel production
  4. Explosive industry
Which of the above are correct?

Answer: 1, 2 and 4 only
Notes: Guar Gum is widely used in treating IBS, shale gas extraction, and the explosive industry, due to its gelling, thickening, and water-blocking properties. However, it is not a typical component in biofuel production, as it lacks the chemical efficiency required for that process. Thus, statements 1, 2, and 4 only are correct.