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Pentaerythritol Tetranitrate (PETN)

  1. PETN is one of the most powerful explosive materials.
  2. It is also used as a Vasodilator drug to treat certain heart conditions, such as for management of Angina.



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The Union Public Service Commission (UPSC) is releasing the official notification for the Civil Services Preliminary Examination (CSE) 2025 today, January 22.

Interested and eligible candidates can check the notification on the UPSC’s official website, upsc.gov.in. According to the UPSC’s revised 2...