Hamad Common Chemical Industries 22/12/2021 A. Pt B. ZnO + Cr2O3 C. Fe in fused mixture of Al2O3 + SiQ2 + MgO D. All of the above Related Mcqs: How many zones through which the charge passes in a rotary kiln ?A. 4 B. 3 C. 2 D. 5... Which one of the following set of raw material is most suitable for manufacture of urea ?A. CH4 N2 and CO2 B. H2 N2 and CO C. H2 CO2 and H2O D. H2O N2 and H2... The percentage of nitrogen in urea is________________?A. 36% B. 46% C. 56% D. 66%... Which of the following fertilizers is not useful for paddy rice ?A. urea B. DAP C. Ammonium sulphate D. Ammonium nitrate... Which of the following potassium fertilizers are more useful for horticultural crops tobacco & potatoes ?A. KCI B. KNO3 C. K2SO4 D. KMnO4...
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