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AP EAMCET201822 Apr 2018Evening ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual

The element X on reaction with conc. HNO ₃ forms two acidic oxides A and B of different shapes. Element Z on reaction with conc. H ₂ SO ₄ forms two acidic oxides A and D of different shapes. What are X and Z ?

Options

  1. AC, C
  2. BS, Cu
  3. CC, S
  4. DC, Cu

Correct answer

A. C, C

Step-by-step solution

aligned & C +4 HNO ₃ CO ₂+4 NO ₂+2 H ₂ O & C +2 H ₂ SO ₄ CO ₂+2 SO ₂+2 H ₂ O aligned CO ₂ and SO ₂ both are acidic.

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