{"id":92387,"date":"2025-06-01T11:22:40","date_gmt":"2025-06-01T11:22:40","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=92387"},"modified":"2025-06-01T11:22:40","modified_gmt":"2025-06-01T11:22:40","slug":"which-one-of-the-following-is-a-reducing-substance","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-a-reducing-substance\/","title":{"rendered":"Which one of the following is a reducing substance?"},"content":{"rendered":"

Which one of the following is a reducing substance?<\/p>\n

[amp_mcq option1=”Oxygen” option2=”Iron” option3=”Potassium permanganate” option4=”Potassium dichromate” correct=”option2″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CISF-AC-EXE – 2017<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nIron is a reducing substance.
\n<\/section>\n
\nA reducing substance (or reductant) is a species that loses electrons in a redox reaction, causing another substance to be reduced while itself being oxidized. Iron can readily lose electrons to form Fe\u00b2\u207a or Fe\u00b3\u207a ions, thus acting as a reducing agent.
\n<\/section>\n
\nOxygen, Potassium permanganate (KMnO\u2084), and Potassium dichromate (K\u2082Cr\u2082O\u2087) are typically strong oxidizing agents, meaning they readily gain electrons from other substances, causing the other substance to be oxidized while they themselves are reduced.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is a reducing substance? [amp_mcq option1=”Oxygen” option2=”Iron” option3=”Potassium permanganate” option4=”Potassium dichromate” correct=”option2″] This question was previously asked in UPSC CISF-AC-EXE – 2017 Download PDFAttempt Online Iron is a reducing substance. A reducing substance (or reductant) is a species that loses electrons in a redox reaction, causing another substance to be … <\/p>\n

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