CHEMISTRY (Theory) Time allowed : 3 hours General Instructions: (i) All questions are compulsory. Maximum Marks : 70 (ii) Marks for each question are indicated against it. (iii) Question numbers 1 to 8 are very short-answer questions and carry 1 mark each. (iv) Question numbers 9 to 18 are short-answer questions and carry 2 marks each. (v) Question numbers 19 to 27 are also short-answer questions and carry 3 marks each. (vi) Question numbers 28 to 30 are long-answer questions and carry 5 marks
Premium Reaction rate Amino acid Chemical reaction
experiment is to establish the stoichiometry of the reaction between titrate oxalate (C2O42-) and permanganate (MnO4-). The purpose of the second part of today’s experiment is to learn about the concepts of the rate of chemical reactions and homogenous catalysis. Broad Overview of the Experimental Method: The purpose of the first part of today’s experiment will be accomplished by performing titrations. A solution with C2O4- of known concentration will be titrated with MnO4-. The second purpose will be
Premium Titration Mole
Freem an‚ Biological Science‚ 4e‚ Chapter 4 Chapter 4 - Nucleic Acids and the RNA World Learning Objectives: Students should be able to... • Sketch a nucleotide‚ label its three basic parts‚ and identify the 2’‚ 3’‚ and 5’ carbons. • Make another sketch showing the primary and secondary structures of DNA. • Describe the primary‚ secondary‚ tertiary‚ and quaternary structures of RNA‚ and explain in what ways RNA differs from DNA. • Explain why and how the secondary structure of DNA allows
Free DNA
One evening in 1950 a Houston couple entered a Chinese restaurant. The woman‚ a radio writer‚ wanted the proprietor’s help in producing a program on recent Chinese history. Overhearing their conversation‚ a nearby man rushed out‚ phoned the police‚ and informed them that people were "talking Communism." The couple was immediately arrested and jailed for 14 hours before the police concluded they had no case. At about the same time a policeman in Wheeling‚ West Virginia‚ discovered some penny-candy
Premium Cold War United States World War II
Friedel-Crafts liquid phase alkylation reaction of aromatic compounds is an industrially important which is known since 1877 and also commonly practiced in organic chemistry for the synthesis of various pharmaceutical compounds [1]. Catalytic benzylation of aromatics with benzyl chloride is one of the commercially significant C-C bond synthetic reaction processes to produce benzylated aromatics such as diphenylmethane and substituted diphenylmethanes. These are key intermediates in the synthesis
Premium Chemical reaction Alcohol Functional groups
Chemical Kenetics A. B. C. Doloiras Department of Chemical Engineering‚ College of Engineering University of the Philippines‚ Diliman‚ Quezon City‚ Philippines DATE PERFORMED: June 28‚ 2013 INSTRUCTOR’S NAME: Ms. Irina Diane Castanos ______________________________________________________________________________________________________________________________ ABSTRACT This experiment aims to determine the influences of varying factors: temperature‚ concentration of reactants‚ and presence
Free Chemical kinetics Chemical reaction Reaction rate
*What is Biochemistry?* * Biochemistry also known as Chemistry of life is the study of chemical substances and vital processes occurring in living organism. Biochemistry governs all living organisms and living processes. * Study of chemical processes in living organisms‚ including‚ but not limited to‚ living matter. * Biochemistry is the science dealing with the chemical composition and chemical reactions happening within‚ and between the living cells of all organisms. → The
Free DNA Cell Protein
1) Demonstrate understanding of the terms atom and molecule. Atom= Smallest Unit of Matter Molecule= 2 or more atoms chemically bonded. 2) Describe paper chromatography. 3) Interpret simple chromatograms. A method used to separate a Solution‚ using a Paper and a beaker of water. The Substances in the Paper go up depending on their Mass. We can say that a Solution has the same substance as another solution because they form a line of the same height. 4) Describe methods of separation
Premium Ontology Water Management
The eerie lifeless doll‚ stripped of its features with each dramatic cut made by a creature composed of needles‚ as well the dark composition and sharp ominous score‚ made the opening scene of Coraline highly recognizable in the film industry and introduced the audience to a gothic animated world like no other. Coraline‚ released in 2009‚ focuses on an eleven year old girl and her journey through an alternate dimension that leaves her appreciating her own reality. The film is based on the book by
Premium Fairy tale Coraline
More than anything else‚ imaginative journeys are about the process of speculation. Do you agree? Argue your point of view. Imaginative journeys take us from the reality now and transfer us into unreal existences or different worlds that not only entertain us‚ but help us to learn more about the world we inhabit and ourselves. This journey requires the process of speculation and contemplation. In texts‚ the imaginative journey involves speculation from the composer as well as the responder
Premium Mind Psychology Cognition