MHT CET · Chemistry · d and f Block Elements
Identify the formula of compound (B) formed in following reaction.
(i) Lanthanoids (Ln) burnt in oxygen forming compound (A)
(ii) Compound (A) reacts with \(\mathrm{CO}_{2}\) in excess to form compound (B)
- A \(\mathrm{LnO}_{2}\)
- B \(\mathrm{Ln}_{2} \mathrm{CO}_{3}\)
- C \(\mathrm{Ln}_{3}\left(\mathrm{CO}_{3}\right)_{2}\)
- D \(\mathrm{Ln}_{2}\left(\mathrm{CO}_{3}\right)_{3}\)
Answer & Solution
Correct Answer
(D) \(\mathrm{Ln}_{2}\left(\mathrm{CO}_{3}\right)_{3}\)
Step-by-step Solution
Detailed explanation
4Ln+3O2?2Ln2O3
?Ln2O3 reacts with CO2 in excess to form Ln2(CO3)3
?Ln2O3 reacts with CO2 in excess to form Ln2(CO3)3
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