The answer isc. SrCO3Sr is in Group II of the periodic table and.pdf

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The answer is c. SrCO3 Sr is in Group II of the periodic table and form Sr2+ ions (oxidation state +2) to balance the CO32- ions %Oxygen by mass = (16 x 3)/(87.6 + 12 + 16 x 3) x 100 = 32.50% Solution The answer is c. SrCO3 Sr is in Group II of the periodic table and form Sr2+ ions (oxidation state +2) to balance the CO32- ions %Oxygen by mass = (16 x 3)/(87.6 + 12 + 16 x 3) x 100 = 32.50%.

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in case of A and D there will be resonance between N-O and O-O . so these are week base. and compared to OH NH2 will be strong base, also C is a alcohol and thus it has more tendancy to release H+ and not to donate its lone pair. HEnce B is the correct answer. ALSO its primary amine. so it has more tendancy to donate so answer is B Solution in case of A and D there will be resonance between N-O and O-O . so these are week base. and compared to OH NH2 will be strong base, also C is a alcohol and thus it has more tendancy to release H+ and not to donate its lone pair. HEnce B is the correct answer. ALSO its primary amine. so it has more tendancy to donate so answer is B.

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For half life to be independent of Concentration is when n - 1 = 0, that is first order reaction. t(1/2) = 0.693/K NOOOO you can not apply this expression for it because when you have integrated the expression how concentration of A varies with t, then we had a condition that n is not equal to 1. and thus you can not apply this expression.!!! HAVE FUN!! Solution For half life to be independent of Concentration is when n - 1 = 0, that is first order reaction. t(1/2) = 0.693/K NOOOO you can not apply this expression for it because when you have integrated the expression how concentration of A varies with t, then we had a condition that n is not equal to 1. and thus you can not apply this expression.!!! HAVE FUN!!.

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public class RectangleDemo { private class Rectangle { private double height; private double width; private String color; public Rectangle(double wid, double high){ height = high; width = wid; } public Rectangle(){ height = 1; width = 1; color = \"White\"; } public void setHeight(double high){ height = high; } public void setWidth(double wid){ width = wid; } public void setColor(String col){ color = col; } public double getArea(){ return height*width; } public double getPerimeter(){ return 2*(height + width); } public void getColor(){ System.out.println(\"Color is: \" + color +\"\ \"); return; } } Solution public class RectangleDemo { private class Rectangle { private double height; private double width; private String color; public Rectangle(double wid, double high){ height = high; width = wid; } public Rectangle(){ height = 1; width = 1; color = \"White\"; } public void setHeight(double high){ height = high; } public void setWidth(double wid){ width = wid; } public void setColor(String col){ color = col; } public double getArea(){ return height*width; } public double getPerimeter(){ return 2*(height + width); } public void getColor(){ System.out.println(\"Color is: \" + color +\"\ \"); return; } }.

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Role of biotechnology in bioterrorism: Biotechnology can be employed by terrorist groups to produce microorganisms that are capable of large scale morbidity and mortality resulting in bioterrorism. Techniques used for the development of pathogens and toxins as weapons include different branches of biotechnology like genetic engineering, protein engineering, functional genomics and artificial viruses. Following are the essential characteristics of microorganisms which are used as weapons Techniques used in bioterrorism try to enhance these characteristics (above) of microorganisms. Solution Role of biotechnology in bioterrorism: Biotechnology can be employed by terrorist groups to produce microorganisms that are capable of large scale morbidity and mortality resulting in bioterrorism. Techniques used for the development of pathogens and toxins as weapons include different branches of biotechnology like genetic engineering, protein engineering, functional genomics and artificial viruses. Following are the essential characteristics of microorganisms which are used as weapons Techniques used in bioterrorism try to enhance these characteristics (above) of microorganisms..

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Polymers are constructed from relatively small molecular fragments known as monomers that are joined together. Chemistry: Properties: Applications: Physical properties of polymers The physical properties of a polymer such as its strength and flexibility depend on: Other substances ( besides monomers ) are often needed for polymerisation to occur, for instance initiators, catalysts, and depending on manufacturing process, solvents may also be used. The resulting plastic polymer can be blended with different additives, for instance plasticisers, flame retardants, heat stabilisers, antioxidants, light stabilisers, lubricants, acid scavengers, antimicrobial agents, anti-static agents, pigments, blowing agents and fillers, and is finally processed into a plastic product. There are many different plastic polymers and several thousand different additives, which results in an extremely large variation in chemical composition of plastic products ( Rosato, 1998 ). Inthe polymeric material, however, non-polymeric components such as residual monomers, oligomers, low molecular weight fragments, catalyst remnants, polymerisation solvents and a wide range of additives can be present ( Crompton, 2007 ). Several of these are hazardous to human health and the environment, for instance carcinogenic, mutagenic, toxic for reproduction, sensitising and hazardous to the aquatic environment with long lasting effects. Since the non- polymeric compounds usually are of low molecular weight and are either weakly bound or not bound at all to the polymeric macro-molecules, they, or their degradation products, can be emitted from the plastic product (Crompton, 2007; OECD, 2004) to air, water or other contact media (e.g. food). Many additives are hazardous for human health and the environment. Some are especially hazardous, for instance brominated flame retardants used to retard ignition and prevent fire from spreading; some phthalate plasticizers mainly used to make PVC flexible; and lead heat stabilizers used to prevent degradation of PVC during processing ( Murphy, 2001 ). Several polybrominated flame retardants are very persistent, very bioaccumulating and toxic, and are listed in the Stockholm Convention on Persistent Organic Pollutants (POPs) (Secretary - general UN, 2009). Among the phthalate plasticisers the most hazardous ones, i.e. BBP, DEHP and DBP, are classified as toxic for reproduction (category 1B). BBP is also very toxic to aquatic organisms with long lasting effects ( European Parliament and Council, 2008; European Commission, 2009 ). In addition, these phthalates, as well as DEP ( diethylphthtalate ) and DCHP ( dicyclohexyl phthalate ), are being evaluated for endocrine disrupting properties ( Groshart and Okkerman, 2000; Okkerman and vander Putte, 2002 ). The lead compounds used in heat stabilizers are classified as toxic for reproduction (category 1A), very toxic to the aquatic environment with long lasting effects (both acute and chronic), and may caus.

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One of 2 principles of genetic heredity first formulated by Gregor Mendel, elucidated on his genetic experiments with pea plants. He finally described that the homologous chromosomes segregate during meiosis and are distributed to different gametes, thereby the offspring acquires one chromosome from each parent. The chromosomal segregation occurs during anaphase -II of meiosis. The segregated chromosomes reunite randomly during the fertilization process. Solution One of 2 principles of genetic heredity first formulated by Gregor Mendel, elucidated on his genetic experiments with pea plants. He finally described that the homologous chromosomes segregate during meiosis and are distributed to different gametes, thereby the offspring acquires one chromosome from each parent. The chromosomal segregation occurs during anaphase -II of meiosis. The segregated chromosomes reunite randomly during the fertilization process..

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