This is extremely great. When it melts, it becomes more dense. 44) Which material is used in display devices, such as digital watches? 2. 9) The scientist who introduced the model of the atom similar to the solar system? It'll be a gas! Answer: 24. Answer: C. 23) Give the name of the radioactive isotope of hydrogen: 24) Cement mixed with gravel, sand, and water is called what? Answer: Number of moles of solute in one liter of the solution. Answer: A. On adding a concentrated solution of potassium hydroxide, the volume further diminished to 15 ml of the residual gas being pure oxygen. 50) One mole of N2H4 loses ten moles of electrons to form a new compound Y. Answer: Caffeine. Chemistry Basics Chapter Exam Instructions. The term "argent" survives, meaning silvery. Answer: Mgo + Pb. Anion: Hydroxide ion. 58) A molal solution is one that contains one mole of a solute in: Chemistry Quiz. This is a cation, which you can remember because the "t" in cation resembles a "+" sign for positive. Avogadro's number is huge! Answer: Emission of electrons by electromagnetic radiation striking on a metal surface. 5) What is the value of Planck’s constant in SI units? 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 Have some serious misconceptions and surfing the internet makes me more confused so please, can you help me. 92) Which substance is produced when nitrogen reacts with hydrogen? Food coloring dispersing in water is an example of diffusion. 21) What is the fundamental particle present in P – rays? 70) Which has a maximum number of atoms? Basic Chemistry Questions? The average adult human body contains about 250 grams of salt, which is just over half a pound. pressure. ... We send trivia questions and personality tests every week to your inbox. 22) A compound was found to contain nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. (a) 22 (b) 44 (c) 66 (d) 88 54) The oxidation number of carbon in CH2O is Animals Cars, Trucks & Engines ... chemistry is so much more than naming elements and finding them on the periodic table. 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 1)Cyclotetrane 2)Benzene 3)Napthalene 4)Anthracene ? 43) Which is the metal as strong as steel but half as much in weight? Not all compounds that contain carbon are organic. I will bookmark this website; there is a lot of questions and answers to take note of here! Check the below NCERT MCQ Questions for Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry with Answers Pdf free download. You can melt gallium in the palm of your hand. There are 4 Chemistry MCQ Questions Answers practice sets which can be accessed below. Use of this feed is for personal non-commercial use only. You even knew the answers to the tricky questions. A quasi-exception would be carbon tetrachloride, which is an organic solvent. Chemistry General Knowledge questions asked in many competitive exams and also chemistry GK is important for SSC and Banking exams. of the past? 94) In the analysis of 0.500 g sample of feldspar, a mixture of chlorides of sodium and potassium is obtained which weighs 0.1180g. If you are not reading this article in your feed reader, then the site is guilty of copyright infringement. hemistry any time soon. 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 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, … The evolved hydrogen, collected over mercury at 0°C has a volume of 1.20 liters at 0.92 atm. HCl forms magnesium chloride, aluminum chloride, and hydrogen. Adenine is a nucleic acid, not an amino acid. 2) The modern atomic mass unit is based on ____ Answer: Glass. Chemistry Questions and Answers Test your understanding with practice problems and step-by-step solutions. 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. 6) The total number of electrons present in 18 ml of water is ____. Prepare for competitive exam by practice chemistry question and answers. Answer: C. 36) Which is considered to be an anomalous compound? Read: Chemistry Questions and Answers – Basic Chemistry . Basic Chemistry question, please explain? 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. Basic Chemistry Question was first posted on December 5, 2020 at 3:27 am. elements, and molecules, i.e. 17) What do you mean by a buffer solution? If there had been a million dollars on the line for knowing all the answers, you would have just missed the prize. You can opt-out at any time. 1. i'm really confused. Mendeleev's table grouped elements according to common properties and periodic trends. The equivalent weight of KMnO4 when it is converted into K2MnO4 is 18) 27 g of Al will react completely with how many grams of oxygen? Tritium is radioactive. Question3: Which one of the Following is not Aromatic? Question2: How many stereoisomers of phenylpropylene oxide are there? What is the percentage of sodium oxide and potassium oxide in feldspar? The following gives the formula and the bonding for potassium oxide as it constitutes to be made under conditions! And 12 neutrons, its atomic number will be dfined: atoms having the same atomic number but different!, aluminum chloride, aluminum chloride, and hydrogen: Al 54.87 %, Mg %. Mendeleev 's table grouped basic chemistry questions according to common properties and periodic trends, too themselves... 21 ) What is the value of Planck ’ s process the composition, structure properties! 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