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NEET UG CHEMISTRY MCQ: 13 TH GROUP ELEMENTS (P-BLOCK)
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Medium
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Analyzing
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) In , isomorphous to , the metal is present in + 1 oxidation state.
Reason (R) metal has fourteen electrons in the electronic configuration.
In the light of the above statements, choose the most appropriate answer from the options given below.
Assertion (A) In , isomorphous to , the metal is present in + 1 oxidation state.
Reason (R) metal has fourteen electrons in the electronic configuration.
In the light of the above statements, choose the most appropriate answer from the options given below.
View answer and explanation
Correct option: B
Both A and R are correct and R is the correct explanation of A.
Option A is correct because Tl in TlI3 exists as Tl+ and I3- due to the inert pair effect, and the presence of 14 f-electrons contributes to this effect.
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