See image — AITS & Test Series Chemistry Question
Question
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Answer: C
💡 Solution & Explanation
Atomic radius Ga (135 pm), Al (143 pm). Oxidation state of Thallium in 3 T I is +1 Boron does not form 3 6 BF ion due to non-availability of d-orbitals. 3 3 H BO is a monobasic acid.
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