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Potassium Dichromate

Which of the ...

Question

Which of the following is formed when a suspension of powdered colemanite is saturated with $S O_{2}$ gas.

A

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B

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C

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D

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Solution

The correct option is B
$C a_{2} B_{6} O_{7} + 9 H_{2} O + 2 S O_{2} \to 2 C a S O_{3} + 6 H_{3} B O_{3}$

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Similar questions

Q. The mineral colemanite is finely powdered and boiled with sodium carbonate solution. The precipitate of

C a C O_{3}

and other two products X and Y are formed. On passing a current of

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S O_{2}

gas is passed through solution of colemanite solution in boiling water, which product is formed?

Q. Which will happen when sodium sulfate is added to a saturated solution of

C a S O_{4}

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C a S O_{4} (s) ⇌ C a_{2} (a q) + S O_{4}^{2 -} (a q)

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C a C O_{3}

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Q. The mineral colemanite is finely powdered and boiled with which solution to get the borax.

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