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-p-Block elements - I — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry-p-Block elements - I1 Mark
MCQ
For compound having the formula $GaAlCl _4$, the correct option from the following is
  • ✓
    $Ga$ is more electronegative than $Al$ and is present as a cationic part of the salt $GaAlCl _4$
  • B
    Oxidation state of $Ga$ in the salt $GaAlC _4$ is $+3$.
  • C
    $Cl$ forms bond with both $Al$ and $Ga$ in $GaAlCl _4$
  • D
    $Ga$ is coordinated with $Cl$ in $GaAlCl _4$
✓

Answer

Correct option: A.
$Ga$ is more electronegative than $Al$ and is present as a cationic part of the salt $GaAlCl _4$
a
Gallous tetrachloro aluminate $Ga ^{+} AlCl _4^{-}$

$2 Ga + Ga ^{+} GaCl _4^{-}+2 Al _2 Cl _6 \stackrel{190^{\circ}}{\longrightarrow} 4 Ga ^{+} AlCl _4^{-}$

Ga is cationic part of salt $GaAlCl _4$.

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