(There is no change in the oxidation state of hydrogen). The answers to the questions are available on separate worksheets so you can fill them out and then check your work. The volume of 0.1 N NaOH required to completely neutralize 10 ml of this solution is 2) The modern atomic mass unit is based on ____ Answer: A. This is the general knowledge questions and answers section on "Chemistry" with explanation for various interview, competitive examination and entrance test. Answer: Bronze. 46) If 0.50 mole of BaCl2 is mixed with 0.20 mol of Na3 PO4, the maximum number of moles of Ba3 (PO4) 2 that can be formed is Download Chemistry MCQ Objective Papers PDF Format: We are in the process of compiling all the Chemistry MCQ Questions Answers in a single or multiple PDF files. Answer: Carbon-12. Answer: C. 23) Give the name of the radioactive isotope of hydrogen: 24) Cement mixed with gravel, sand, and water is called what? You can also brush up on chemistry by taking another quiz. If you don't have enough salt, your body suffers an electrolyte imbalance called hyponatremia. 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. (a) 0.70 (b) 0.50 (c) 0.20 (d) 0.10 You could simply take another quiz! A quasi-exception would be carbon tetrachloride, which is an organic solvent. (a) Molarity (b) Normality (c) Formality (d) Molality If an atom has more protons than electrons, it has a net positive charge. Bromine and mercury are liquid at room temperature. You even knew the answers to the tricky questions. 2.) Save my name, email, and website in this browser for the next time I comment. 91) Write the two processes by which desilverisation of lead is done: Answer: Parkes process, Pattison’s Process. Avogadro's number is huge! Answer: D. 20) Which element can easily form chains? Chemistry is an amazing subject which combines a number of different sciences, attempting to make sense of the complicated world we live in. How many milligrams of sodium are contained in 2.00g of NaCl? 98) A compound contains 28 percent of nitrogen and 72 percent of metal by weight. HCl forms magnesium chloride, aluminum chloride, and hydrogen. 83) What kind of metals are generally extracted by electrolysis? The circle next to the answer will turn yellow. It's OK to miss a question or two. Today we have compiled an “Important Chemistry … Answer: A. Most of the body's iron is locked up in the hemoglobin found in red blood cells, used for oxygen transport. Answer: Number of moles of solute in one liter of the solution. Important Chemistry Questions and Answer PDF. 14) The weight of 1 × 1022 molecules of CuSO4 .5H2O is ____ I will bookmark this website; there is a lot of questions and answers to take note of here! Answer: A. Periodic Table Trivia Questions & Answers. Calculate the composition of the alloy. Adenine is a nucleic acid, not an amino acid. There are 4 Chemistry MCQ Questions Answers practice sets which can be accessed below. 92) Which substance is produced when nitrogen reacts with hydrogen? Answer: C. 55) Which mineral ores forms kidney-shaped crystals? 38) 2.76 g of silver carbonate on being strongly heated yields a residue weighing This is extremely great. Solved examples with detailed answer description, explanation are given and it would be easy to understand. If there was a million dollar prize for getting the questions right, you could be rich right now! Answer: C. 36) Which is considered to be an anomalous compound? A life long learner, Librarian and teacher by profession... 100 Physics Questions and Answers – Basic Physics, 100 Biology Questions and Answers – Basic Biology, 100 Pub Quizzes – Pub Trivia Questions and Answers, 100 Basic Economics Questions – Economics Quiz, General Knowledge and Current Affairs – October 2020, History General Knowledge (GK) Quiz Questions and Answers. Answer: Atoms having the same atomic number but a different mass number. You know your stuff! Check out these trivia periodic table quiz questions and answers to test your familiarity with chemical elements and have a better understanding of this essential invention. This is a cation, which you can remember because the "t" in cation resembles a "+" sign for positive. 96) Which metal has the density is less than that of water? Q. Answer: Alkali and alkaline earth metals. 88) Which gas liberated when marble reacts with hydrochloric acid? I am reviewing for a chemistry final and I got stuck on a few basic ones. Interesting Periodic Table Trivia Facts. Free science fun for chemists. The state of matter of a substance is due to the kinetic energy of its components. It's yellow and lacks a metallic luster. You didn't miss this one, right? Chemistry is a very interesting and important subject as it explains everything involved with compounds and elements around us. Important Chemistry Questions and Answer PDF for SSC. 8) Which element on adding to natural rubber makes it less sticky in hot weather and less hard in cold weather? On the one hand, you won't be winning the Nobel Prize in chemistry any time soon. 9) The scientist who introduced the model of the atom similar to the solar system? On the other hand, you're probably an expert in another field! Chemistry Questions and Answers Test your understanding with practice problems and step-by-step solutions. You have a good command of chemistry. 89) Where was the technique of powder metallurgy invented? If you want to improve your knowledge, grab a kid's science text or start learning chemistry online. If you want to improve your knowledge, grab a kid's science text or start learning chemistry online. Answer: Stirring of molten metal with green wood. Answer: A. 99) Which iron contains a high percentage of carbon? Top Chemistry Questions and Answers – Learn the Basics of Chemistry Part 4 (76-100) 77) Which is the first alloy, a mixture of two metals to be made in the world? Top Ten Questions: Chemistry. The formula of the compound is Antimony and most of its compounds are toxic. (a) M (b) M/3 (c) M/5 (d) M/7 1.) 57) Which mineral is often used as an abrasive? Bunsen Burners, test-tubes filled with brightly coloured fluids, goggles and strange smells; this is the world of chemistry - at least to someone starting high school! 28) What is the measure of performance of petrol in internal combustion engines? Our chemistry quiz has questions on organic and inorganic chemistry. Answer: Solution which can maintain constant PH. 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. On the other hand, you're probably an expert in another field! 31) What do you mean by dating of objects? Answer: 4.14 g. 15) What kind of thermometer is used to determine the depression of freezing point? 80) Which element is present in the least amount in a living body? It's not actually organic, but it is nonpolar so it dissolves organic molecules. This is a collection of chemistry worksheets in pdf format. Choose the game quiz you like and play as many times as you want (a) 8 g (b) 16 g (c) 32 g (d) 24 g There are few resources that offer chemistry answers for free, and sometimes it takes hours to find an answer to the exact chemistry question you have. (a) 22 (b) 44 (c) 66 (d) 88 [H = 1, Mg = 24, Al = 27] 78) What weight of AgCl will be precipitated when a solution containing 4.77 g of NaCl is added to a solution of 5.77 g of AgNO 3? Calculate the molecular formula of the hydrocarbon gas. 74) Consider a titration of potassium dichromate solution with acidified Mohr’s salt solution using diphenylamine as an indicator. 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. You can change your answer if you want. 22) A compound was found to contain nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. 6) The total number of electrons present in 18 ml of water is ____. Calculate the following to the correct number of significant figures: 2.35 - 0.1784 _____ -10 .0017 a. pressure. 12) Which chemical causes Minamata disease? You can melt gallium in the palm of your hand. The number of moles of Mohr’s salt required per mole of dichromate is Tin is safe enough to use to make cans for food. Answer: A. 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. Answer: Argon, Oxygen, Carbon di oxide, Nitrogen. 50) One mole of N2H4 loses ten moles of electrons to form a new compound Y. Refresh all that you learned in your chemistry class for this Periodic table trivia quiz game. Boy (8-10) in Chemistry Lab. Answer: C. 51) Which substance is obtained when magnesium is heated with lead oxide? 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. Learn something new about chemistry! (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 41) Which mineral is used making plaster and paper? Its a good one. 77) Which is the first alloy, a mixture of two metals to be made in the world? Answer: Atoms having an equal number of neutrons. If you put pure magnesium in your hand, it may react with the water in your skin and ignite, but it won't melt.