Quiz Hard 1 Categories Quizzes 2 Quiz Hard 1 1 / 30 What is the name of the process by which molecules naturally flow from an area of higher concentration to one of lower concentratIon? Diffusion Respiration Dialysis Transfusion 2 / 30 Which of the following statement is not related with SO2? It reacts photochemically with other pollutants It is moderately soluble in water It is a colourless gas It is reduced slowly in clear air to H2S It has sharp and pungent odour 3 / 30 Which of the following compounds has fishing odour? amines H2S Carboxylic acids Organic sulphide animals 4 / 30 The study of animal is called zoology Hematology Taxonomy Anatomy 5 / 30 The expected specific waste of paper and allied products industry is inks paper and fiber residue chemicals all these glues 6 / 30 What is a method of forming polymer sheets or films into three-dimensional shapes in which the sheet is clamped on the edge, heated until it softens and saga, drawn in contact with the mold by vacuum, and cooled while still in contact with the mold? solid phase forming thermoforming Calendaring Blow molding setting 7 / 30 The scientific study of plant life is called what? Hematology none botany archaelogy 8 / 30 In 1903 Arthur Lapworth became the first chemist to investigate a reaection mechanism reaction he investigated was that of hydrogen cyanide with prop a none. Nucleophilie additionlic electrophonic substitution Nucleophilic substitution electrophonic addition 9 / 30 The presence of ribosomes and DNA in mitochondria indicates the synthesis of Proteins Lipids Carbohydrates fats 10 / 30 Which of the following is not a stage of mitotic interphase? G2 S phase M phase G1 11 / 30 What are natural or synthetic rubber like materials which have out-standing elastic characteristics? Thermosetting plastics Thermoplastic plastics polymers Elastomers none 12 / 30 which chlorine compound has bonding that can be described as ionic with some covalent bond character? SiCl4 MgCl2 AlCl3 NaCl 13 / 30 What is a combination of two or more materials that has properties that the components materials do not have by themselves? mixture matrix polymers composite compound 14 / 30 Which of the following is not present in mitochondria? Co-enzymes Thylakoids Enzymes Ribosomes 15 / 30 What is a measure of rigidity? Ductile strength stifness Modulus of elasticity hardness strength 16 / 30 The process of cell division can take place by Mitosis none Heterosis Fusion 17 / 30 The emissions from a power station contain about 14 tonnes of SO2 per hour from the oxidation of F2S2 contained in the coal Pass the emissions through a bed of calcium oxide ✓ Cool the gases and the SO2 will liquefy and can be removed Dissolve the ionic FeS2 in hexane Pass the gases through concentrated sulphuric acid to dissolve the SO2 18 / 30 Which statement is most likely' to be true for astatine, which is below iodine in group VII of the periodic Table? Potassium astatine and hot dilute sulhiuric acid read to from white fumes of only hydrogen astatine. Sodium antadite and hot concentrated sulphuric acid react to from astatine Astatine and aqueous potassium chloride react to form aqueous potassium astatine and chlorine Solver astadite reacta dilute With dilute aqueoou ammonia in excess to orm a solution of a soluble complex 19 / 30 What is a method of casehardening involving diffusion in which the steel to be casehardened is machined. heat-treated. placed in an air-tight box and heated to about 10000F? decomposition annealing carburizing nitriding normalizing 20 / 30 Who first observed and thus hypothesized that new cells are formed from previously existing living? Both B and C Louis Pasteur Rudolph Virchows Theodor Schwann and Schleiden 21 / 30 Which of the following statement is no true with respect to nitrogen dioxide. Its small concentration has been detected in lower stratosphere It is major pollutant does not absorb sun light is produced by fuel combustion It is produced by the oxidation of NO 22 / 30 At constant temperature and pressure, the rates of effusion of various gases vary inversely as square root of their densities. This is a statement of Charles's law Graham's law Boyle's law Dalton's law Avogadro's law 23 / 30 Breeders have developed new and better varieties of food items, by using which technique: Genetic engineenng pasteurization Bloiogical control Hydroponic culture technique 24 / 30 The cell wall is secreted by Protoplasm Golgi complex Nucleus EndoPlasmic reticulum 25 / 30 Which class of microtubules disappear during mitotic telophase? Kinetochore polar Astral Radial 26 / 30 Geneticist Hermann J. Muller wrote "In a sense we contain ourselves, wrapped up within ourselves, trillions of times repeated." To what does this quote refer? population genome cell society 27 / 30 Which of the following pollutant results from combustion of fossil fuels? CO NO2 all these SO2 fly ash 28 / 30 Membrane bound, mostly pigment containing bodies, present in the cells are called: Starch grains chromatophores Plastids Leucoplast 29 / 30 Which of the following technique is the application of voltametry at a fixed potential to detect changes in the currents as a function of the concentration of the analyte potentiometry polargraphy Amperometry columetry 30 / 30 who opposed the idea the cell is an empty space bounded by thick wall Schwann robert brown Lorenz Rudolph virchow Your score is Share: Quiz Dad Previous post Quiz Medium 5 October 1, 2022 Next post Quiz Hard 2 October 1, 2022 You may also like Quiz Hard 5 1 October, 2022 Quiz Hard 4 1 October, 2022 Quiz Hard 3 1 October, 2022
