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Borax

In the struct...

Question

In the structure of borax, the numbers of boron atoms and B-O-B units, respectively, are:

4 and 5

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4 and 3

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5 and 4

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5 and 3

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Solution

The correct option is A 4 and 5
Borax contains boron in both planar $B O_{3}$ and tetrahedral $B O_{4}$ units. It contains 4 B atom and five B-O-B linkages.
Hence option A is correct.

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Similar questions

- O H

Borax is actually made of two tetrahedra and two triangular units joined together and should be written as: Na2[B4O5(OH)4]·8H2O

The correct statement/s about borax is/are:

a. Each boron atom has four B-O bonds

b. Each boron atom has three B-O bonds

c. Two boron atoms have four B-O bonds while other two have three B-O bonds

d. Each boron atom has one -OH groups

N a_{2} [B_{4} O_{5} (O H)_{4}] .8 H_{2} O

N a_{2} [B_{4} O_{5} (O H)_{4}] .8 H_{2} O

x

B - O - B

y

\frac{y}{x}

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