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Sep 6, 2023 · Download PDF. NCERT Solutions for Class 11 Physics Chapter 13 Kinetic Theory - Exercise Questions. Q13.1 Estimate the fraction of molecular volume to the actual volume occupied by oxygen gas at STP. Take the diameter of an oxygen molecule to be 3 Å. Answer: The diameter of an oxygen molecule, d = 3 Å.
Sep 9, 2022 · NCERT Exemplar Class 10 Science Solutions Chapter 4-MCQ. Question:1. Carbon exists in the atmosphere in the form of (a) carbon monoxide only (b) carbon monoxide in traces and carbon dioxide (c) carbon dioxide only (d) coal Answer: (c) Solution: Carbon exists in the atmosphere in the form of carbon dioxide gas (CO 2) in air (only 0.03%).
Apr 26, 2023 · Argon is an inert gas so it is non-polar molecular solid. Q 1.6(xi) Classify the following solids in different categories based on the nature of intermolecular forces operating in them: silicon carbide .
Apr 13, 2023 · It is then replaced with an inert gas, such as argon or nitrogen. Since the filaments must be both thin and robust enough to endure the high heat and pressures of use in an electric bulb, making fine tungsten filaments for light bulbs needs an exceptionally high level of precision.
Jun 19, 2019 · These exercise-wise NCERT solutions Class 12 Chemistry Chapter 8 will help you to learn better. There are three series of the d block elements, 3d series (Sc to Zn), 4d series (Y to Cd) and 5d series (La to Hg, except Ce to Lu). The fourth 6d series which begins with Ac is still incomplete. The two series of the f-block elements, (4f and 5f ...
Mar 6, 2023 · This chapter of class 12 NCERT solutions is the second chapter of NCERT Class 12. It basically introduces basic concepts related to concentration, molarity, molality, mole fraction, Raoult's law, henry law, vapour pressure, colligative properties etc. NCERT solutions for Class 12 Chemistry Chapter 2 is an extension of chapter 1 class 11 NCERT ...
Apr 22, 2022 · Neon is particularly used in discharge tubes and fluorescent bulbs. Argon provides an inert atmosphere in high-temperature metallurgical processes and is used as filling in electric bulbs. Significance of NCERT Class 12 Chemistry Chapter 7 Notes. P-Block Elements Class 12 notes are helpful to revise the chapter and to get an idea about the main ...
Sep 1, 2022 · The atomic number of calcium and argon are 20 and 18 respectively, but the mass number of both these elements is 40. What is the name given to such a pair of elements? Answer: Elements with the same mass number (A) but different atomic numbers (Z) are called isobars. Calcium and Argon are isobars. Hence and is are isobars
Aug 18, 2022 · Question 1.34 A welding fuel gas contains carbon and hydrogen only. Burning a small sample of it in oxygen gives 3.38 g carbon dioxide, 0.690 g of water and no other products. A volume of 10.0 L (measured at STP) of this welding gas is found to weigh 11.6 g. Calculate (ii) molar mass of the gas . Answer : Wight of 10 Litres of the gas at S.T.P. is
Jun 27, 2023 · Introductions. There are 11 elements in the periodic table which exist in a gaseous state at room temperature. Observation in the gaseous state is quite easily observed, like changes in temperature and pressure. Hydrogen, Helium, Oxygen, Nitrogen, Fluorine, Chlorine, Argon, Krypton, Neon, Xenon and Radon are the gaseous elements in the periodic ...
