The crystalline form of borax has(A) tetranuc | vedclass

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

Question

(D) The correct formula of borax is $Na_2\left[B_4O_5(OH)_4\right] \cdot 8H_2O$.$1$. Borax contains a tetranuclear unit $\left[B_4O_5(OH)_4\right]^{2-

Vedclass · Accepted Answer

$A, C, D$

Vedclass · Answer

(D) The correct formula of borax is $Na_2\left[B_4O_5(OH)_4\right] \cdot 8H_2O$.$1$. Borax contains a tetranuclear unit $\left[B_4O_5(OH)_4\right]^{2-}$,which consists of two $sp^3$ hybridized boron atoms and two $sp^2$ hybridized boron atoms.$2$. Since there are two $sp^3$ and two $sp^2$ boron atoms,the number of $sp^2$ and $sp^3$ hybridized boron atoms is equal.$3$. In the structure,each of the four boron atoms is bonded to one terminal hydroxide $(-OH)$ group.$4$. The boron atoms are not all in the same plane due to the tetrahedral geometry of the $sp^3$ hybridized boron atoms.Therefore,statements $A$,$C$,and $D$ are correct.

The crystalline form of borax has
$(A)$ tetranuclear $\left[B_4O_5(OH)_4\right]^{2-}$ unit
$(B)$ all boron atoms in the same plane
$(C)$ equal number of $sp^2$ and $sp^3$ hybridized boron atoms
$(D)$ one terminal hydroxide per boron atom

Similar Questions

Which compound is not a monobasic acid?

Which of the following statements is correct for boric acid?

Consider the following statements for diborane $(B_2H_6)$:
$1.$ Boron is approximately $sp^3$ hybridized.
$2.$ $B-H-B$ angle is $180^{\circ}$.
$3.$ There are two terminal $B-H$ bonds for each boron atom.
$4.$ There are only $12$ bonding electrons available.
Which of these statements are correct?

Alumina $(Al_2O_3)$ is:

What is the difference between the first member of a group and the other elements in the $s$- and $p$-block? Why?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

The crystalline form of borax has$(A)$ tetranuclear $\left[B_4O_5(OH)_4\right]^{2-}$ unit$(B)$ all boron atoms in the same plane$(C)$ equal number of $sp^2$ and $sp^3$ hybridized boron atoms$(D)$ one terminal hydroxide per boron atom