Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R . Assertion A : In T l I 3 , isomorphous to CsI 3 , the metal is present in + 1 oxidation state. Re

Question

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$ .

Assertion $A :$ In $T l I_{3},$ isomorphous to ${CsI}_{3}$ , the metal is present in $+ 1$ oxidation state.

Reason $R :$ $T l$ metal has fourteen $f$ electrons in its electronic configuration.

In the light of the above statements, choose the most appropriate answer from the options given below:

TestHub · Accepted Answer

T ℓ I 3 ⇒ T ℓ ⊕ & I 3 ⊝ CsI 3 ⇒ Cs ⊕ & I 3 ⊝ [Both have same crystalline structure is called isomorphous] T ℓ 81 ⊕ = Xe 54 4 f 14 , 5 d 10 , 6 s 2 (It is correct due to present 14 f electrons in Tℓ ⊕ ion) T l I 3 is T ℓ + I 3 - CSI 3 is Cs + I 3 - Thallium shows T ℓ + state due to inert pair effect.

Chemistry - CHEMICAL BONDING Question with Solution | TestHub

Options:

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