pBlock ElementsII - Result Question 107

####104. Write down the balanced equation for the reactions when

(i) calcium phosphate is heated with a mixture of sand and carbon.

(ii) ammonium sulphate is heated with a mixture of nitric oxide and nitrogen dioxide.

(1985, 2M)

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Solution:

  1. (i) 2Ca3(PO4)2+6SiO2+10CΔ6CaSiO3

+10CO+P4

(white)

(ii) (NH4)2SO4+NO+NO22N2+3H2O+H2SO4



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