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Standard XII
Chemistry
Phosphine
Question
Phosphine is obtained from the following ore
A
Calcium superphosphite
B
Calcium phosphide
C
Potassium phosphide
D
Calcium hypophosphide
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Solution
Verified by Toppr
Correct option is C. Potassium phosphide
Phosphine is obtained from the Calcium phosphide and Potassium phosphide ore.
$$Ca_3P_2 +6H_2O\to 3Ca(OH)_2+2PH_3$$
$$K_3P+3H_2O\to 3KOH +PH_3$$
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