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NEETChemistryp Block Elements (Group 15, 16, 17 & 18)

Besides signals, where else is phosphine used?

Options

  1. AIn fireworks
  2. BIn refrigeration
  3. CIn smoke screens
  4. DIn water purification

Correct answer

C. In smoke screens

Step-by-step solution

The paragraph mentions that phosphine is used in smoke screens in addition to its use in signals.

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