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NEET 2019
Exam
NEET
Year
2019
Subject
Chemistry
Chapter
p Block Elements (Group 15, 16, 17 & 18)

NEET 2019 · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

A compound ' X^ upon reaction with H_2 O produced a colourless gas...

A compound ' X′\mathrm{X}^{\prime} upon reaction with H2O\mathrm{H}_2 \mathrm{O} produced a colourless gas ' YY ' with rotten fish smell. Gas ' Y\mathrm{Y} ' is absorbed in a solution of CuSO4\mathrm{CuSO}_4 to give Cu3P2\mathrm{Cu}_3 \mathrm{P}_2 as one of the products. Predict the compound ' X\mathrm{X} 'A compound ' X^ upon reaction with H_2 O produced a colourless gas ' Y ' with rotten fish smell. Gas ' Y ' is absorbedA compound ' X^ upon reaction with H_2 O produced a colourless gas ' Y ' with rotten fish smell. Gas ' Y ' is absorbed

Options

  1. ACa3P2\mathrm{Ca}_3 \mathrm{P}_2
  2. BNH4Cl\mathrm{NH}_4 \mathrm{Cl}
  3. CAs2O3\mathrm{As}_2 \mathrm{O}_3
  4. DCa3(PO4)2\mathrm{Ca}_3\left(\mathrm{PO}_4\right)_2

Correct answer

A. Ca3P2\mathrm{Ca}_3 \mathrm{P}_2

Step-by-step solution

 The given road map problem is <imgsrc="/api/proxy−image?url=https\text{ The given road map problem is }<img src="/api/proxy-image?url=https%3A%2F%2Ffirebasestorage.googleapis.com%2Fv0%2Fb%2Fquantrexacademy-app.firebasestorage.app%2Fo%2Fquestions%252Ffigs%252Fpyq%252Fneet%252FU7sSiAyaLTQUBA6SufwESTZH5vlBz90upEyrocfv5d0.original.fullsize.png%3Falt%3Dmedia&clean=1&v=wm2" data-qx-orig-src="https://firebasestorage.googleapis.com/v0/b/quantrexacademy-app.firebasestorage.app/o/questions%2Ffigs%2Fpyq%2Fneet%2FU7sSiAyaLTQUBA6SufwESTZH5vlBz90upEyrocfv5d0.original.fullsize.png?alt=media" data-qx-storage-src="https://firebasestorage.googleapis.com/v0/b/quantrexacademy-app.firebasestorage.app/o/questions%2Ffigs%2Fpyq%2Fneet%2FU7sSiAyaLTQUBA6SufwESTZH5vlBz90upEyrocfv5d0.original.fullsize.png?alt=media"> \\ As compound ' X\mathrm{X} ' produces a colorless gas ' Y\mathrm{Y} ' with rotten fish smell, it can be Ca3P2\mathrm{Ca}_3 \mathrm{P}_2 (calcium phosphide). The reaction takes palce as follows : \mathrm{Ca}}_{3} \mathrm{P}}_{2}+\mathrm{H}}_{2} \mathrm{O} \longrightarrow \mathrm{Ca}(\mathrm{OH})_2+ \mathrm{PH}}_{3} Colorless gas with rotten fish smell. ' Y\mathrm{Y} ' CuSO4+PH3Y′⟶Cu3P2+H2SO4\mathrm{CuSO}_4+\underset{\mathrm{Y}^{\prime}}{\mathrm{PH}_3} \longrightarrow \mathrm{Cu}_3 \mathrm{P}_2+\mathrm{H}_2 \mathrm{SO}_4
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