The teacher said that elemental boron is...

The teacher said that elemental boron is prepared from borax.
Write the chemical formula of borax.

A

`Na_2 [B_4 O_4 (OH)_3].9H_2 O`

B

`Na_2 [B_4 O_5(OH)_4].8H_2 O`

C

`Na_2 [B_4 O_6 (OH)_5].7H_2 O`

D

`Na_2 [B_4 O_7 (OH)_6].6H_2 O`

Verified by Experts

The correct Answer is:

B

Formula of borax is `Na_2 [B_(4) O_(5) (OH)_(4) ]. 8H_(2) O`.

Similar Questions

Explore conceptually related problems

write the chemical formula of oleum?

The teacher said that elemental boron is prepared from borax. What are the products obtained when it burns in air?

The teacher said that elemental boron is prepared from borax. What are the products obtained when it. treated with conc. H_2SO_4 .

Borax, orthoboric acid and diborane are some useful compounds of boron Write the chemical formula of borax.

Chloroform can be prepared from Methane: What is the chemical formula of chlor-oform?

Some elements and their valencies are given Write the chemical formula of zinc oxide .

Some elements and their valencies are given Write the chemical formula of barium chloride .

The atomic number of four elements are given below. Write the chemical formula of the compound formed by two elements other than inert gases.

Write a method to prepare Glucose from starch. Write the chemical equation of the reaction.

Chloroform can be prepared from Methane: Write the Chemical equation for the reaction.