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In blast furnace, which mixture on heati...

In blast furnace, which mixture on heating gives phosphorous ?

A

Ash of bone and coke.

B

Ash of bone, silica and coke.

C

Ash of bone and silica.

D

None of the above

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The correct Answer is:
B
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  14. In..........oxidation number of sulphur is +7.

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  17. Electronic arrangement of Lv is...........

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  18. Chlorination of ethane is carried out in presence of ..........

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