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  • What is the product(s) formed when colemanite is boiled with ?

What is the product(s) formed when colemanite is boiled with \mathrm{Na _2 CO_3}?

(a) \mathrm{Na_2B_4O_7}

(b) \mathrm{CaCO_3}

(c) \mathrm{NaBO_2} 

Option: 1

(a) and (b) only 


Option: 2

(a) and (c) only 


Option: 3

(b) and (c) only


Option: 4

(a), (b) and (c) 


Answers (1)

best_answer

As we have learnt,

Colemanite is boiled with \mathrm{Na_2CO_3} to get \mathrm{Na_2B_4O_7} (borax). The reaction is given below:

\mathrm{Ca_{2}B_{6}O_{11}+2Na_{2}CO_{3}\rightarrow Na_{2}B_{4}O_{7}+2CaCO_{3}+2NaBO_{2}}

Hence, all of the compounds given in the question are formed.

Therefore, option(4) is correct.

Posted by

SANGALDEEP SINGH

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