Which of the following statements about BF_4^ | vedclass

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

Question

(D) In $BF_4^{-}$, the oxidation state of $B$ is $+3$. In $AlF_6^{3-}$, the oxidation state of $Al$ is $+3$. Thus, statement $(i)$ is incorrect.In $BF

Vedclass · Accepted Answer

$(ii)$, $(iii)$

Vedclass · Answer

(D) In $BF_4^{-}$, the oxidation state of $B$ is $+3$. In $AlF_6^{3-}$, the oxidation state of $Al$ is $+3$. Thus, statement $(i)$ is incorrect.In $BF_4^{-}$, the covalency of $B$ is $4$. In $AlF_6^{3-}$, the covalency of $Al$ is $6$. Thus, statement $(ii)$ is correct.In $BF_4^{-}$, $B$ is surrounded by $4$ bonds, meaning $8$ electrons in its valence shell, so it obeys the octet rule. Thus, statement $(iii)$ is correct.$B$ and $Al$ do not have a diagonal relationship; $B$ has a diagonal relationship with $Si$. Thus, statement $(iv)$ is incorrect.Therefore, statements $(ii)$ and $(iii)$ are correct.

Which of the following statements about $BF_4^{-}$ and $AlF_6^{3-}$ are correct?
$(i)$ $B$ and $Al$ differ in their oxidation states.
$(ii)$ $B$ and $Al$ differ in their covalency.
$(iii)$ $B$ obeys the octet rule.
$(iv)$ $B$ and $Al$ are in diagonal relationship.

Similar Questions

The alum used for purifying water is

Which of the following statements is correct regarding boron hydrides?

Write balanced equations for :
$(i) \, BF_{3} + LiH \to $
$(ii) \, B_{2}H_{6} + H_{2}O \to $
$(iii) \, NaH + B_{2}H_{6} \to $
$(iv) \, H_{3}BO_{3} \xrightarrow{\Delta }$
$(v) \, Al + NaOH \to $
$(vi) \, B_{2}H_{6} + NH_{3} \to $

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

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Which of the following statements about $BF_4^{-}$ and $AlF_6^{3-}$ are correct?$(i)$ $B$ and $Al$ differ in their oxidation states.$(ii)$ $B$ and $Al$ differ in their covalency.$(iii)$ $B$ obeys the octet rule.$(iv)$ $B$ and $Al$ are in diagonal relationship.