Which of the following is an incorrect statement about the compounds of group $13$ elements?

  • A
    All the trihalides exist except $TlI_3$
  • B
    Trihalides on hydrolysis form tetrahedral species
  • C
    Diborane is an example of electron precise hydride
  • D
    Hydrolysis of diborane gives boric acid

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Similar Questions

The Lewis acid nature of $BX_3$ follows the order:

$A$ compound $(A)$ of boron reacts with $NMe_3$ to give an adduct $(B)$ which on hydrolysis gives a compound $(C)$ and hydrogen gas. Compound $(C)$ is an acid. Identify the compounds $A, B$ and $C$. Give the reactions involved.

$2BF_3 + 6NaH \xrightarrow{450 \ K} X_{(g)} + 6NaF$. Which of the following statements is \textbf{Incorrect} for $X$?

Match List-$I$ with List-$II$. Choose the correct answer from the options given below:
List-$I$List-$II$
$A$. Melting point $[K]$$I$. $Tl > In > Ga > Al > B$
$B$. Ionic Radius $[M^{+3} / pm]$$II$. $B > Tl > Al \approx Ga > In$
$C$. $\Delta_{i} H_1 [kJ \ mol^{-1}]$$III$. $Tl > In > Al > Ga > B$
$D$. Atomic Radius $[pm]$$IV$. $B > Al > Tl > In > Ga$

Which of the following statements about $H_3BO_3$ is not correct?

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