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NTA Abhyas NEET2020Chemistryp Block Elements (Group 15, 16, 17 & 18)Practice

The elemental phosphorus is made from rock phosphate, C a 3 ( P O 4 ) 2 by making use of which one of the following reactions?

Options

  1. AC a 3 ( P O 4 ) 3 + C + M g O → Δ
  2. BC a 3 ( P O 4 ) 2 + C + SiO 2 → Δ
  3. CC a 3 ( P O 4 ) 2 + C + Z n O → Δ
  4. DC a 3 ( P O 4 ) 2 + C + F e O → Δ

Correct answer

B. C a 3 ( P O 4 ) 2 + C + SiO 2 → Δ

Step-by-step solution

C a 3 ( P O 4 ) 2 + S i O 2 → Δ C a S i O 3 + P 2 O 5 P 2 O 5 + C → Δ P + C O

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