SarkariPYQ

SSC CGL 2021 PYQ — Question 31

SSC CGL - 24 Aug 2021 - Shift 3 • General Awareness • Q31

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In the following passage, some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each blank.
John was an artist (1)______ profession. He was very (2)______ at his work and could
(3)______ any subject he could think of, but circumstances forced him to (4)______ in
(5)______ the work of renowned artists.

Which of the following gases is naturally formed via the anaerobic decay of phosphorus containing organic matter?

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Correct answer: C

Explanation

The correct answer is option 3 i.e. Phosphine

 

Phosphine:

  • It is the simplest phosphorus hydride and a colourless and extremely toxic gas.
  • The earliest reported preparation was made by Antoine Lavoisier’s student Philippe Gengembre in the late 18th century.
  • It is made industrially from white phosphorus by hydrolysis with an alkali metal hydroxide or an aqueous acid-catalyzed disproportionation reaction.
  • The industrial product is normally shipped as liquefied gas.
  • Hence, the correct answer is 'Phosphine'.