Various Exams - Practice Sets Chemistry Test admin July 23, 2024 0 Report a question What’s wrong with this question? You cannot submit an empty report. Please add some details. Chemistry Test DIY test on you Chemistry Gyan… NameEmailPhone NumberExam Preparing For 1 / 25 As the atomic number increases, electron affinity Decreases Increases Remains constant Approaches infinite value 2 / 25 Mean free path of gas molecules is dependent on Viscosity of the gas Velocity of gas Volume of the gas Temperature of the gas 3 / 25 ß-particles are Orbital electrons Electrons present in atmosphere Electrons emitted by nucleus Electrons obtained during cation formation 4 / 25 Tritium is composed of One proton, two electrons and one neutron Two protons and one electron One proton, one electron and one neutron One proton, one electron and two neutrons 5 / 25 Carbon dioxide is An acidic oxide A basic oxide A neutral oxide An atmospheric oxide 6 / 25 Which of the following non-metals is a liquid? Bromine Carbon Phosphorus Sulphur 7 / 25 Which of the following statements about the physical properties of non-metals is not correct? They are not ductile Most of these have high melting and boiling points They do not conduct electricity They are not malleable 8 / 25 The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is Dalton's law Gay-Lussac's law Henry's law Raoult's law 9 / 25 The equilibrium constant decreases with rise of temperature in the case of Endothermic reaction Exothermic reaction Heterogeneous reaction Homogeneous reaction 10 / 25 In which of the following compounds the oxidation number of oxygen is +2? F2O O2 KO3 Na2O2 11 / 25 The first attempt to explain the structure of the hydrogen atom was made by John Dalton Albert Einstein Stanislao Cannizzaro Niels Bohr 12 / 25 Which of the following has the highest electronegativity? Carbon Nitrogen Oxygen Fluorine 13 / 25 A solution of zinc chloride cannot be stored in a vessel made of Aluminium Gold Lead Silver 14 / 25 Which of the following two elements are present in the largest number of compounds? Carbon and hydrogen Carbon and nitrogen Carbon and oxygen Oxygen and hydrogen 15 / 25 Glycerol is used for all of the following, except As a sweetening agent in beverages and confectionery As an antifreeze in automobile radiators As a lubricant for heavy machinery For preparation of better quality of soaps and cosmetics 16 / 25 Which of these is an example of an adverb phrase? With great enthusiasm The blue sky Ran quickly Very carefully 17 / 25 The process of union of two or more molecules of a substance to form a large single molecule is called Diffusion Synthesis Fusion Polymerisation 18 / 25 Which of the following copper alloys is used for the manufacture of resistance wire? Aluminium bronze German silver Bell metal None of these 19 / 25 Solder, which is used for soldering metal pieces, is an alloy of Tin and zinc Tin and lead Zinc and lead Zinc and copper 20 / 25 In the sentence “The book on the shelf is mine,” what type of phrase is “on the shelf”? Noun phrase Adjective phrase Adverb phrase Prepositional phrase 21 / 25 Positrons are particles Having a unit positive charge Having same mass as electrons Given out by artificial radioactive substances Have all the above characteristics 22 / 25 Which of the following statements about the use of radioactive isotopes is correct? In medicine, they are used as tracers for diagnostic purposes In industry, they are used to detect leak in water, oil and gas pipelines They are used to determine the age of rocks and fossils All of these statements are correct 23 / 25 Which of the following metals has the lowest melting point? Lead Lithium Potassium Sodium 24 / 25 The osmotic pressure of a solution increases if Volume is increased Temperature is decreased Number of molecules of solute is increased None of the above 25 / 25 Which of the following copper alloys is used for the manufacture of springs and suspension filaments in electrical instruments? Bronze Aluminium bronze German silver Phosphorus bronze Your score isThe average score is 0% Send feedback About Author / admin Previous post Just Phrase Next post Tragic Stampede at Hathras Religious Gathering You Might Also Like Why Skateboarding is Still Popular in 2021 July 8, 2020 Things You Didn’t Know About Australia & New Zeland June 26, 2020 5 Tricks to Organize Your Perfect Trip August 9, 2020