D-And F-Block Elements Ques 446

Question: The X, Y and Z respectively are

Options:

A) Ln2O3,H2,Ln(OH)3+H2

B) Ln(OH)3+H2,Ln2O3,H2

C) H2,Ln2O3,Ln(OH)3+H2

D) Ln(OH)3+H2,LNO3,H2

Show Answer

Answer:

Correct Answer: B

Solution:

Lanthanoids react with dilute acids to liberate H2 gas and they form oxides and hydroxides of the type M2O3 and M(OH)3+H2 respectively.



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