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AP EAMCET2005ChemistryGeneral Principles and Processes of Isolation of Metals

Which of the following is not correct?

Options

  1. ASiO ₂ is used as acid flux
  2. BThe distance between the layers in graphite is 3.35 10⁻³ ~cm
  3. CSiO ₂ reacts with Na ₂ CO ₃ and liberates CO .
  4. DThe hybridisation of C in graphite is s p^2

Correct answer

C. SiO ₂ reacts with Na ₂ CO ₃ and liberates CO .

Step-by-step solution

Silica reacts with metal carbonate forming silicate with the evolution of CO ₂ .

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