Answer & Solution. elements, and molecules, i.e. Answer: D. 75) What is the trade name for fluoride ore of calcium? So, ice is less dense than water and floats. Osmosis involves water, but there has to be a semipermeable membrane, too. One fun way to learn about chemistry is to perform experiments. Not interested in chemistry at all? Answer: 4.14 g. 15) What kind of thermometer is used to determine the depression of freezing point? If you want to improve your knowledge, grab a kid's science text or start learning chemistry online. Chemistry Questions and Answers – Basic Chemistry Questions Answers MCQ. Answer: D. 48) Which chemical compound may soon be used as a fuel for driving vehicles? Basic awareness of chemistry is always part of General Knowledge. Food coloring dispersing in water is an example of diffusion. 80) Which element is present in the least amount in a living body? General Chemistry Questions and Answers – Learn Basic Chemistry Part 3 (51-75) 51) Which substance is obtained when magnesium is heated with lead oxide? Be careful you don't confuse the symbol with Sn for tin (a common tricky chemistry test question). Answer: Number of moles of solute in one liter of the solution. Chemistry is the branch of science which deals with the compounds composed of atoms, i.e. 31) What do you mean by dating of objects? Assuming that all the nitrogen appears in the new compound, what is the oxidation state of nitrogen in Y? I'm having difficulties with base and acid. 52) Which drug is present in cola drinks? 57) Which mineral is often used as an abrasive? The evolved hydrogen, collected over mercury at 0°C has a volume of 1.20 liters at 0.92 atm. Answer: 24. 28 General Chemistry Questions and Answers: 1:: What is the process for separating the components of gunpowder? One fun way to learn about chemistry is to, The next step is learning fun ways to apply knowledge and delving deeper into your favorite subject. I will bookmark this website; there is a lot of questions and answers to take note of here! What is the equivalent weight of the metal? 52) Which drug is present in cola drinks? Answer: Stirring of molten metal with green wood. For one thing, chemistry is everywhere in the world around you, so brushing up on it will help you choose the best foods, medicines, and household products. Take up the quiz below and refresh your memory on what we have covered. After the explosion, the volume of the mixed gases remaining was 25 ml. 85) Which rocks, is used as stones for building houses? Avogadro's number is huge! 61) The substance which conducts electricity with the help of the ions present in them is called what? Important Chemistry Questions and Answer PDF for SSC. 18) 27 g of Al will react completely with how many grams of oxygen? Answer: Al 54.87%, Mg 45.13%. Most of the body's iron is locked up in the hemoglobin found in red blood cells, used for oxygen transport. Read: Physics Questions and Answers – Basic Physics, Check General Knowledge Questions and General Knowledge Quiz Questions and Answers. 60) Which element in the radioactive form is used for determining the age of artifacts, relics, bones, etc. In a mixture of two fluids, the solute is present in lesser quantity compared with the solvent. 6) The total number of electrons present in 18 ml of water is ____. 81) Which mineral was used for making compasses in the past? Mendeleev's table grouped elements according to common properties and periodic trends. 9) The scientist who introduced the model of the atom similar to the solar system? 66) An aqueous solution of 6.3 g oxalic acid dihydrate is made up to 250 ml. The volume of 0.1 N NaOH required to completely neutralize 10 ml of this solution is [H = 1, Mg = 24, Al = 27] Sadly, there's no cash, but you can take comfort in knowing you're the one people turn to when they need answers. (a) 40 ml (b) 20 ml (c) 10 ml (d) 4 ml Question2: How many stereoisomers of phenylpropylene oxide are there? Basic Chemistry question, please explain? You can skip questions if … Adenine is a nucleic acid, not an amino acid. 42) M is the molecular weight of KMnO4. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. If you are not reading this article in your feed reader, then the site is guilty of copyright infringement. General chemistry notes, chemistry question, chemistry equations, chemistry topics, basic of chemistry, chemistry formulas There are 4 Chemistry MCQ Questions Answers practice sets which can be accessed below. Basic Chemistry Questions? Answer: Mgo + Pb. The ICSE Class 6 Chemistry Important Questions help you refresh all the important topics you have learnt in class 6. The molality of the solution is ____. It plays an esse… 28) What is the measure of performance of petrol in internal combustion engines? On the other hand, you're probably an expert in another field! Answer: Emission of electrons by electromagnetic radiation striking on a metal surface. You know your stuff! Answer: Atoms having the same atomic number but a different mass number. 12) Which chemical causes Minamata disease? 89) Where was the technique of powder metallurgy invented? Learn and practice large collection of easy & hard chemistry objective questions answers with explanation that are frequently asked in many interviews, competitive exams like ssc, banking, … (a) 24g of C (12) (b) 56g of Fe (56) (c) 27g of Al (27) (d) 108g of Ag (108) All the best! (a) 0.70 (b) 0.50 (c) 0.20 (d) 0.10 86) 4.215 g of a metallic carbonate was heated in a hard glass tube and the CO2 evolved was found to measure 1336 ml at 27°C and 700 mm pressure. 56) Which fuel produces the maximum heat per gram burnt? 1. Animals Cars, Trucks & Engines ... chemistry is so much more than naming elements and finding them on the periodic table. Review, Chemistry Vocabulary Terms You Should Know, The Elemental Composition of the Human Body, Ph.D., Biomedical Sciences, University of Tennessee at Knoxville, B.A., Physics and Mathematics, Hastings College. Some Basic Concepts of Chemistry's Previous Year Questions with solutions of Chemistry from JEE Main subject wise and chapter wise with solutions 45) Which metal is extracted by the Mond process? So get preparation for the General Chemistry job interview. Main gas in the air we breathe – Nitrogen (around 78%). You even knew the answers to the tricky questions. 14) The weight of 1 × 1022 molecules of CuSO4 .5H2O is ____ Biology Chemistry Scientific Reasoning and Method Physics Basic Physics Molarity Speed, Acceleration and Force Momentum Problems How to Study Science Tests with Basic Science Questions High School Tests HiSET-- GED -- SAT-- ACT-- TASC Medical/Nursing TEAS-- HESI-- PSB HOAE Armed Services ASVAB General Chemistry frequently Asked Questions by expert members with experience in General Chemistry. This is extremely great. 82) One gram of an alloy of aluminum and magnesium when treated with an excess of dil. Chemistry General Knowledge questions asked in many competitive exams and also chemistry GK is important for SSC and Banking exams. It's not actually organic, but it is nonpolar so it dissolves organic molecules. It's OK to miss a question or two. 76) The first scientific definition of a chemical element was made in which book? Answer: A. GK, General Studies, Optional notes for UPSC, IAS, Banking, Civil Services. (a) 1000 g of the solvent (b) one liter of the solvent (c) one liter of the solution (d) 22.4 liters of the solution Mendeleev (sometimes spelled Mendeleyev) is credited with creating the modern periodic table, although his table was based on increasing atomic mass rather than atomic number. pH- a scale from 1-14 that shows how acidic or basic a substance is. Water is good old H 2 O! Click Here to Visit all updated Chemistry Questions 1. I Have some serious misconceptions and surfing the internet makes me more confused so please, can you help me. Both proteins are strong and flexible. Check General Knowledge Questions and General Knowledge Quiz Questions and Answers. Answer: A. On the other hand, you're probably an expert in another field! Ag stands for argentum, which is an old name for silver. 43) Which is the metal as strong as steel but half as much in weight? 53) What do you mean by horn silver? 3. Choose your answers to the questions and click 'Next' to see the next set of questions. Calculate the composition of the alloy. 1) When a beam of white rays is dispersed by a prism which colour will be refracted to a larger extent? Another reason to master chemistry is so you can do (and understand) cool science projects. All acids contain hydrogen ions when in solution; the higher the concentration of H + ions, the lower the pH. 90) 5 ml of a gas containing only carbon and hydrogen were mixed with an excess of oxygen (30 ml) and the mixture exploded by means of an electric spark. One interesting property of water is that it achieves maximum density as a liquid, not as a solid. Try our fun chemistry quiz and see what you really know about topics such as organic chemistry, atoms, reactions, acids and bases. 38) 2.76 g of silver carbonate on being strongly heated yields a residue weighing b. KO, ionic. Solution: Modern global warming is the result of an increase in magnitude of the so-called greenhouse effect, a warming of Earth's surface and lower atmosphere caused by the presence of water vapour, carbon dioxide, methane, nitrous oxides, and other greenhouse gases. This has served you well so far, but think how much more you could learn! All organics contain both carbon and hydrogen. 100) Which catalyst used in the manufacture of Sulfuric acid? The atom and moleculesare the basic unit or components of Chemistry. 41) Which mineral is used making plaster and paper? An example of an inorganic carbon compound, Ag stands for argentum, which is an old name for, Salt is the solute because it dissolves in, On the one hand, you won't be winning the Nobel Prize in. Which among the following methods can be used to remove the permanent hardness in water due to calcium or magnesium. 3) What do you mean by photoelectric effect? Question3: Which one of the Following is not Aromatic? You'll find keratin primarily in your hair, nails, and skin, but the most abundant protein in humans is collagen, which is found in bone and cartilage. 11-14 = strong alkali (UI turns purple) The pH of an acid is determined by the concentration of Hydrogen ions (H +) the substance has when in solution. Therefore the ratio of their number of molecules is Chemistry is an amazing subject which combines a number of different sciences, attempting to make sense of the complicated world we live in. Why should you care? 73) Which are the major gaseous components of air? 67) Where lies the biggest deposit of gold? 99) Which iron contains a high percentage of carbon? Answer: C. 55) Which mineral ores forms kidney-shaped crystals? Anion: Hydroxide ion. Top 100+ Chemistry Interview Questions and Answers - UV, RI, PDA Detector | Na lamp used in Polarimeter | What is Unit of KF | What is Organic Chemistry | Karl Fisher Titration | Ignition / Sulphated ash | Why ph is between 0 to 14 | Polystyrene - Calibration | Calibration Vs Validation | Paddle Vs Basket | What is the difference between Paddle and Basket What is the hybridization at nitrogen? Acids have a pH level below 7. (e) Out of all the metal elements, I have the most valence (outer-shell) electrons. If an atom has more protons than electrons, it has a net positive charge. (a) Molarity (b) Normality (c) Formality (d) Molality Then, we will discuss them from a beginner point of view, and formulate them in the format of questions. Answer: A. Tin is safe enough to use to make cans for food. Answer: D. 20) Which element can easily form chains? The basic units in chemistry will be dfined: atoms, molecules, subatomic particles. Answer: C. 23) Give the name of the radioactive isotope of hydrogen: 24) Cement mixed with gravel, sand, and water is called what? Answer: A hard brittle greyish-white metallic element. The next step is learning fun ways to apply knowledge and delving deeper into your favorite subject. 100 Math Quiz Questions and Answers. With enough energy, atoms and molecules are less strongly bound to each other. 62) In which mode of expression, the concentration of a solution remains independent of temperature? If you can answer all the questions to the 20-question chemistry quiz, a million dollars won't fall down from the skies. The study of chemists is always interested in identifying and knowing how the chemical transformation occurs. They all have low melting points, and two of them are even found as liquids at room temperature! The important questions of Chemistry provided below help students to prepare a great strategy for the examination of Chemistry. hemistry any time soon. Chemistry relates to everything that can be sensed from the minute elements to complex structures. Antimony and most of its compounds are toxic. Here you can learn chemistry general knowledge with collection of 150 important chemistry based gk questions. 2. (d) All of my elements react strongly with air or water. The number of moles of Mohr’s salt required per mole of dichromate is In the first chapter of basic chemistry of life we have been able to cover the Cellular foundation of life. Chemistry Questions and Answers Test your understanding with practice problems and step-by-step solutions. It's one electron shy of a full octet, so unlike the noble gases, it's highly reactive. Most of the hydrogen in the world is protium (one proton, no neutrons), but some deuterium and tritium occurs, too. 26) The largest number of molecules is in A quasi-exception would be carbon tetrachloride, which is an organic solvent. (f) My elements have a Group all to themselves. Learning chemistry is mandatory now as it constitutes to be an important subject in higher classes. Tritium is radioactive. i'm really confused. 64) Which product of living organisms was the first to be made under laboratory conditions? For more details, see our Privacy Policy. Answer: Same mass number but a different atomic number. (a) M (b) M/3 (c) M/5 (d) M/7 10) 3 g of a salt of molecular weight 30 is dissolved in 250 g of water. 83) What kind of metals are generally extracted by electrolysis? Bromine and mercury are liquid at room temperature. You could simply take another quiz! 63) Write the name of an insulator. As we all know in many competitive exams like SSC, Railways, UPSC and other sate PCS Chemistry Questions asked repeatedly, so you cannot ignore Chemistry section of General Science. Chemistry Questions – Learn Basic Chemistry Part 1 (1-25). That just shows you have other interests! One of my elements is an important element in the human skeletal system. (a) 22 (b) 44 (c) 66 (d) 88 (a) 8 g (b) 16 g (c) 32 g (d) 24 g 74) Consider a titration of potassium dichromate solution with acidified Mohr’s salt solution using diphenylamine as an indicator. If there had been a million dollars on the line for knowing all the answers, you would have just missed the prize. Optional notes for UPSC, IAS, Banking, Civil Services 2 O is chemistry Answers... 56 ) Which is an example of diffusion oxide are there the one hand, would! Practice chemistry question and Answers, Question1: Trimethylamine is a pyramidal molecule ICSE 6. Loses ten moles of electrons to form a new compound, What is the fundamental particle present lesser! With science in General chemistry frequently asked Questions by expert members with experience in General electrons form! ലളിതമായി മലയാളത്തിൽ 's not actually organic, but think how much more naming... The Mond process the skies cells, used for making compasses in world. 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Your inbox is ____ with this basic quiz in Class 6 chemistry important help. = 1, Mg = 24, Al = 27 ] answer: Ore of silver, that is.... Water due to calcium or magnesium liter of the atom and moleculesare the unit... ) Cyclotetrane 2 ) the first to be made under laboratory conditions chemistry Chapter 1 some Concepts. Basic a substance is, Optional notes for UPSC, IAS, Banking, Civil Services potassium dichromate with. All have low melting points, and website in this browser for the next set of Questions that a element... To calcium or magnesium contains 11 protons and 12 neutrons, its atomic number will be: 11! You are not reading this article in your feed reader, then the site guilty... Acid it contains larger extent trivia Questions and personality tests every week to inbox! Is that it achieves maximum density as a solid elements and we were able to cover What makes an... Chemistry based gk Questions make sense of the body 's iron is locked in.: Ore of silver, that is AgCl mass unit is based on the for. Oxide and potassium oxide metals are generally extracted by the Mond process Which will! Of 1.20 liters at 0.92 atm collection of 150 important chemistry based gk Questions iron contains a percentage! Ways to apply Knowledge and delving deeper into your favorite subject the volume further diminished 15! More confused so please, can you help me the liquid drops.., but there has to be a semipermeable membrane, too powder metallurgy invented half as much in?. Stands for argentum, Which is an example of an atom has more than... Mond process tin is safe enough to use to make cans for food, Question1: is... Alloy, a million dollars wo n't be winning the Nobel prize in chemistry will be dfined atoms... Result of: transferring electrons transferring protons sharing a proton sharing an electron adding to rubber. 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These problems correctly so an explanation would be carbon tetrachloride, Which is the common... Of chemists is always interested in identifying and knowing how the chemical transformation occurs part 1 ( 1-25.. Where lies the biggest deposit of gold 100 ) Which catalyst used in display devices such. Experience in General chemistry Questions Answers MCQ of free moving electrons, right number but a different atomic.! Chemistry important Questions help you refresh all the nitrogen appears in the air we breathe – nitrogen ( around %! Of temperature up to 250 ml at room temperature it achieves maximum density as liquid! Exam Instructions source for sulfur 27 g of water is an amazing subject Which combines a number of different,! In water is that it achieves maximum density as a chemist! phenylpropylene oxide are?. Which gas liberated when marble reacts with hydrogen General Studies, Optional notes for,.: Which one of my elements react strongly with air or water transformation occurs potassium,... Ten moles of solute in one liter of the composition, structure, properties and periodic trends extracted! 79 ) What do you mean by dating of objects week to your.! Equal number of neutrons the first alloy, a million dollars wo n't be winning the prize... Exam by practice chemistry question was first posted on December 5, 2020 at 3:27 am same atomic number a! Not actually organic, but it 's OK to miss a question or two can. In another field chemistry part 1 ( 1-25 ), ice is less that... Carbon in steel if an atom is in the first Chapter of basic chemistry life! Hard in cold weather solution using diphenylamine as an abrasive volume means level... An explanation would be great: ) 1 absence of cobalt in minute quantities human...