NEET UG CHEMISTRY MCQ: 13 TH GROUP ELEMENTS (P-BLOCK)

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Analyzing +4 | -1

Which of the following statement(s) is/are incorrect ?

(i) Trichlorides on hydrolysis in water form tetrahedral

\left[\mathrm{M}(\mathrm{OH})_4\right]^{-}

species.

(ii) Hybridisation state of metal in tetrahedral species is

\mathrm{sp}^3

.

(iii) Aluminium chloride in acidified aqueous solution forms

\left[\mathrm{Al}(\mathrm{OH})_4\right]^{-}

ion.

View answer and explanation

Correct option: C

(iii) only

Option C ((iii) only) is correct because Aluminium chloride in acidified aqueous solution forms

\left[\mathrm{Al}(\mathrm{H}_2\mathrm{O})_6\right]^{3+}

ion, not

\left[\mathrm{Al}(\mathrm{OH})_4\right]^{-}

ion.

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