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( a ) Name the products obtained on complete combustion of hydrocarbons? How is the gas evolved during combustion tested in the laboratory? Explain in brief. ( b ) Write the next higher homologue of : CBSE class10 Science 20161 AnswerA rocket motor has combustion chamber temperature of 2600 K and the products have molecular weight of 25 g/mol and ratio of specific heats 1.2. GATE-Aerospace Engineering-Question-20121 AnswerAir contains 79% N2 and 21% O2 on a molar basis. Methane (CH4) is burned with 50% excess air than required stoichiometrically. Assuming complete combustion of methane, the molar percentage of N2 in the products is ________________1 AnswerWhat are the adverse effects of products the combustion of fossil fuels on the environment. -cbse-biology-class10-20121 AnswerList the products of combustion of fossil fuels. -cbse-biology-class10-20121 AnswerWhat do you mean by complete and incomplete combustion?1 AnswerWhat are the hydrocarbons? Distinguish alkanes from alke nes and each of them from alkynes giving one example of each. Also draw the structure s of each compound cited as example to justify your answer . CBSE class10 Science 20161 AnswerList two physical and two chemical properties of acetic acid which a student can test in the school laboratory. CBSE class10 Science 20161 AnswerThe stagnation temperatures at the inlet and exit of a combustion chamber are 600 K and 1200 K, respectively GATE-Aerospace Engineering-Question-20121 AnswerExplain the process of combustion of fuel with the help of chemical equations.1 AnswerA student obtained a sharp inverted image of a distant tree on the screen placed behind a convex lens. He then removed the screen and tried to look through the lens in the direction of the object. He would now observe: CBSE class10 Science 20161 AnswerWhat is the theoretical requirement of air (in m3 at STP) for the complete combustion of 100 m3 (at STP) of a fuel consisting of pure CH4? Assume that air contains 21 vol.% of oxygen. _____. (-Gate metallurgical engineering 2014)1 AnswerCalculate the amount of water in gm produced by the combustion of 8 gms of Ethane. CBSE- class11- Chemistry 20161 AnswerHow many moles of methane required to produce 88 gms of CO2 after combustion. CBSE- class11- Chemistry 20161 AnswerName the gas libe rated when ethanol reacts with S odium metal? How do we get ethe ne from ethanol? Write chemical equation to justify your answer. State the role of acid in this reaction. CBSE class10 Science 20161 AnswerWhy certain compounds are called hydrocarbons? Write the general formula for homologous series of alkanes, alkenes and alkynes and also draw the structure of the first member of each series . Write the name of the reaction that converts alkenes into 1 AnswerComplete statement and branch coverage means:0 Answer"The democracy has been evolved through struggles and movements all over the world." -cbse-civics-class10-20151 Answer( a ) What is fragmentation in organisms ? Name a multicellular organism which reproduces by this method. ( b ) How does regeneration take place? Why is this process not possible in all animals? CBSE class10 Science 20161 AnswerState the meaning of “biodiversity”. List one advantage each of conserving f orests and wild life. CBSE class10 Science 20161 Answer
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