MCQ
Then choose the correct option


- A$A : La$
- B$B : Sc$
- C$E : Hf$
- ✓All are incorrect

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$(a) ClO_4^-> ClO_3^-> ClO_2^-> ClO^-$ Stability order
$(b) Cl_2 > Br_2> F_2> I_2$ Bond energy
$(c) OF_2 < OH_2< OCl_2$ Bond angle
$(d) I^-> Br^-> Cl^-$ Reducing power
$CaC{O_3}\left( s \right)\overset \Delta \longleftrightarrow CaO\left( s \right) + C{O_2} \uparrow ,{K_p} = 8 \times {10^{ - 2}}$
$C{O_2}\left( g \right) + C\left( s \right) \rightleftharpoons 2CO\left( g \right),{K_p} = 2$