AP EAMCET202423 May 2024Morning ShiftChemistrys Block ElementsActual
Which of the following, on thermal decomposition, form both acidic and basic oxides along with O ₂ ? (i) NaNO ₃ (ii) Ca ( NO ₃ )₂ (iii) Be ( NO ₃ )₂ (iv) LiNO ₃ The correct option is
Options
- Aii, iii only
- Biii, iv only
- Cii, iv only
- Di , ii , iii
Correct answer
C. ii, iv only
Step-by-step solution
2 NaNO ₂ (basic) 2 NaNO ₂ + O ₂4 LiNO ₃ (basic) 2 Li ₂ O + (acidic) 4 NO ₂ + O ₂4 Be ( NO ₃ )₂ (basic) [ Be ₄ O ( NO ₃ )₆ ]+ N ₂+ 5 2 O ₂ 2 Ca ( NO ₃ )₂ (basic) 2 CaO ( s ) + (acidic) 4 NO ₂( ~g ) + O ₂ So , Ca ( NO ₃ )₂ and LiNO ₃ give both acidic and basic oxide along with O ₂ .