Fsc Part 2 Chemistry Online Test-Chapter 15 Common Chemical Industries in Pakistan

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Sr.#	Question	Answer
1	What is clinker	A. Roasted calcareous material B. Roasted argillaceous material C. Roasted calcareous and argillaceous material D. Roasted gyposum
2	Which one of the following raw materials is not present in the cement.	A. Lime stone B. Gypsum C. Blast furnace slag D. Red lead
3	Which one is not an argillaceous material.	A. Clay B. Shale C. State D. Gypsum
4	Which chemical reduces the acidity of soil.	A. Lime B. Urea C. Ammonium nitrate D. Ammonium sulphate
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
6	During pulp making, the pH of digester is maintained at.	A. 1-2 B. 3-5 C. 6-8 D. 7-9
7	Pulp is washed to remove lignin from it. Due to the presence of lignin in pulp paper becomes.	A. Soft B. Brittle C. Acidic D. Colourless
8	The composition mixture of clay and lime stone in the raw material.	A. 75% lime stone and 25% clay B. 25% lime stone and 75% clay C. 15% lime stone and 55% clay D. 55% lime stone and 15% clay
9	Which elements are needed for healthy growth of plants	A. N,S,P B. N,Ca,P C. N,P,K D. N,K,C
10	In which country first of all paper was invented	A. USA B. China C. Egypt D. Germany