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

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Sr.#	Question	Answer
1	Which one of the following is the macronutrient for plants.	A. Boron B. Zinc C. Calcium D. Nitrogen
2	Micronutrients for plant are those which	A. Are required in very large amount B. Are required in very small amount C. Are produced from plants in very small amount D. Retard the growth of plants
3	In Pakistan pulp is usually bleached with Cl2. The residual chlorine is removed from pulp by an antichlor which is	A. dil HCl B. dil NaOH C. Water D. NaCl
4	The percentage of clay and liem stone in cement is in the ratio of.	A. 1 : 1 B. 1 :2 C. 1:3 D. 3:1
5	Setting process of cement is based upon	A. Hydrolysis B. Hydration C. Dehydration D. Botha a and b
6	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
7	Cement is a mixture of	A. Clay and clinker B. Clay, lime stone and gypsum C. Lime stone and gypsum D. Lime stone and clay
8	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
9	Which woody raw material is used for the manufacture of paper pulp.	A. Cotton B. Bagasse C. Poplar D. Rice straw
10	The nitrogen present in some fertilizers helps plants	A. to fight against diseases B. to produce fat C. to undergo photosynthesis D. to produce protien