Which of the following statements are not cor | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The order of atomic radii of group $13$ elements is $B < Ga < Al < In < Tl$. This is due to the poor shielding effect of $3d$-electrons in $Ga$,wh

Vedclass · Accepted Answer

$ii, iii$ only

Vedclass · Answer

(A) The order of atomic radii of group $13$ elements is $B The correct order of ionization enthalpy for group $13$ elements is $B > Tl > Ga > Al > In$. This anomaly is due to the poor shielding effect of $d$ and $f$ orbitals. Thus,statement $(ii)$ is incorrect.Boron trioxide $(B_2O_3)$ is acidic in nature because it is a non-metal oxide and reacts with water to form boric acid $(H_3BO_3)$. Thus,statement $(iii)$ is incorrect.Therefore,statements $(ii)$ and $(iii)$ are not correct.

Which of the following statements are not correct?
$i$. Atomic radius of $Ga$ is less than that of $Al$
$ii$. The order of ionization enthalpy of group $13$ elements is $B > Al > Ga > In > Tl$
$iii$. Boron trioxide is amphoteric in nature

Similar Questions

Boron halides behave as Lewis acids because of their nature.

Which of the following is the correct match?

Aluminium reacts with $NaOH$ and forms compound '$X$'. If the coordination number of aluminium in '$X$' is $6$, the correct formula of $X$ is:

$A$ compound $X$,of boron reacts with $NH_3$ on heating to give another compound $Y$,which is called inorganic benzene. The compound $X$ can be prepared by treating $BF_3$ with lithium aluminium hydride. The compounds $X$ and $Y$ are represented by the formulas.

Which of the following is electron-deficient?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Which of the following statements are not correct?$i$. Atomic radius of $Ga$ is less than that of $Al$$ii$. The order of ionization enthalpy of group $13$ elements is $B > Al > Ga > In > Tl$$iii$. Boron trioxide is amphoteric in nature