A April 14, 2012 Reply. Class XI Chapter 1 – Some Basic Concepts of Chemistry Chemistry Page 6 of 24 = 1 : 1.5 = 2 : 3 The empirical formula of the oxide is Fe2O3. 67) Where lies the biggest deposit of gold? CBSE Important Questions Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry. Download CBSE Important Questions for CBSE Class 11 Chemistry Some Basic Concepts of Chemistry General Introduction: Importance and scope of chemistry. Calculate the molecular formula of the hydrocarbon gas. KALAICHELVAN . significant. Solution — Molar mass (Molecular mass in gram) of CaCO3 = 40+12+3×16 = 100 g No. Answer: Stirring of molten metal with green wood. 45) Which metal is extracted by the Mond process? Register online for Chemistry tuition on Vedantu.com to score more marks in your examination. Important Chemistry Questions and Answer PDF for SSC. 96) Which metal has the density is less than that of water? 12. Subsequent treatment of mixed chlorides with silver nitrate gives 0.2451g of silver chloride. Our interactive player makes it easy to find solutions to Basic Concepts Of Chemistry 9th Edition problems you're working on - just go to the chapter for your book. NCERT Solutions for Class 11 Chemistry Chapter 1 – Some Basic Concepts of Chemistry . Download NCERT Solutions for basic concepts of chemistry here. 1. This is an alternate ISBN. 50) One mole of N2H4 loses ten moles of electrons to form a new compound Y. Please keep a pen and paper ready for rough work but keep your books away. Question 1. Molality is the number of solute that is present in 1 kg … Pradeep April 28, 2012 Reply. Calculate the composition of the alloy. © 2003-2021 Chegg Inc. All rights reserved. [H = 1, Mg = 24, Al = 27] Answer: Al 54.87%, Mg 45.13%. 99) Which iron contains a high percentage of carbon? Published: April 13, 2012. elements, and molecules, i.e. In this chapter, laws of chemical combination, Dalton’s atomic theory, mole concept, empirical and molecular formula, stoichiometry and its calculations are discussed. Please publish SCIENCE related in zoology, Botany , Physics with life science question and answer. The volume of 0.1 N NaOH required to completely neutralize 10 ml of this solution is (a) 40 ml (b) 20 ml (c) 10 ml (d) 4 ml Answer: A. Today we have compiled an “Important Chemistry … 98) A compound contains 28 percent of nitrogen and 72 percent of metal by weight. A living organism is made elements and we were able to cover what makes up an element. The formula of the compound is (a) NO (b) N2O3 (c) N2O5 (d) N2O4 Answer: C. 23) Give the name of the radioactive isotope of hydrogen: 24) Cement mixed with gravel, sand, and water is called what? (a) Molarity (b) Normality (c) Formality (d) Molality Answer: D. 63) Which elements impact corrosion resistance to steel? 2) The modern atomic mass unit is based on ____ Answer: Carbon-12. Here we have covered Important Questions on Some Basic Concepts of Chemistry for Class 11 Chemistry subject.. Chemistry Important Questions … Important Chemistry Questions and Answer PDF. Why buy extra books when you can get all the homework help you need in one place? 10) 3 g of a salt of molecular weight 30 is dissolved in 250 g of water. (a) 8 g (b) 16 g (c) 32 g (d) 24 g Answer: D. 20) Which element can easily form chains? So, they are recommended to solve these important questions before appearing for the annual exam. Boy (8-10) in Chemistry Lab. Basic Chemistry Questions & Answers. 89) Where was the technique of powder metallurgy invented? Bookmark it to easily review again before an exam.The best part? There will be total 20 MCQ in this test. 8) Which element on adding to natural rubber makes it less sticky in hot weather and less hard in cold weather? … Unlike static PDF Basic Concepts Of Chemistry 9th Edition solution manuals or printed answer keys, our experts show you how to solve each problem step-by-step. This is extremely great. You can also find solutions immediately by searching the millions of fully answered study questions in our archive. 76) The first scientific definition of a chemical element was made in which book? 80) Which element is present in the least amount in a living body? 42) M is the molecular weight of KMnO4. 6) The total number of electrons present in 18 ml of water is ____. 70) Which has a maximum number of atoms? 38) 2.76 g of silver carbonate on being strongly heated yields a residue weighing (a) 2.16 g (b) 2.48 g (c) 2.32 g (d) 2.64 g Answer: A. (a) –1 (b) –3 (c) +3 (d) +5 Answer: C. 51) Which substance is obtained when magnesium is heated with lead oxide? What is titration? When … NCERT Solutions for Class 11-science Chemistry CBSE, 1 Some Basic Concepts of Chemistry. You can download our homework help app on iOS or Android to access solutions manuals on your mobile device. 62) In which mode of expression, the concentration of a solution remains independent of temperature? b) different. No need to wait for office hours or assignments to be graded to find out where you took a wrong turn. 1: 1st PUC Chemistry Chapter 1 - Some Basic ConCepts of Chemistry: 2: 1st PUC Chemistry Chapter 2 - Structure of Atoms: 3: 1st PUC Chemistry Chapter 3 - Classification of Elements and Periodicity in Properties: 4: 1st PUC Chemistry Chapter 4 - Chemical Bonding and Molecular Structure: 5: 1st PUC Chemistry Chapter 5 - States of Matter- Gases and Liquids: 6: 1st PUC Chemistry … has three significant figures because all nonzero digits are 74) Consider a titration of potassium dichromate solution with acidified Mohr’s salt solution using diphenylamine as an indicator. 1) When a beam of white rays is dispersed by a prism which colour will be refracted to a larger extent? Free PDF download of NCERT Solutions for Class 11 Chemistry Chapter 1 - Some Basic Concepts of Chemistry solved by Expert Teachers as per NCERT (CBSE) textbook guidelines. If you have any query regarding Kerala Plus One Chemistry Chapter Wise Questions and Answers Chapter 1 Some Basic Concepts of Chemistry, drop a comment below and we … 92) Which substance is produced when nitrogen reacts with hydrogen? HCl forms magnesium chloride, aluminum chloride, and hydrogen. It's OK to miss a question or two. How do I view solution manuals on my smartphone? Hydrocarbons(Q & A) 14. MCQs of chemistry class 11 chapter 1 Somebasic concepts of chemistry, useful for CBSE, NEET, IIT JEE and CET exam preparation, find more@learnfatafat CBSE 11 Chemistry 01 Some Basic Concepts of Chemistry As a Chegg Study subscriber, you can view available interactive solutions manuals for each of your classes for one low monthly price. 72) What is the most common natural source for sulfur? Here you can get Class 11 Important Questions Chemistry based on NCERT Text book for Class XI.Chemistry Class 11 Important Questions are very helpful to score high marks in board exams. Save my name, email, and website in this browser for the next time I comment. Its a good one. Chegg Solution Manuals are written by vetted Chegg General Chemistry experts, and rated by students - so you know you're getting high quality answers. On adding a concentrated solution of potassium hydroxide, the volume further diminished to 15 ml of the residual gas being pure oxygen. Hit a particularly tricky question? pressure. 27) What are isobars? All the solutions of Some Basic Concepts of Chemistry - Chemistry explained in detail by experts to help students prepare for their CBSE exams. Welcome to the www.letsstudytogether.co online free pdf section. 77) Which is the first alloy, a mixture of two metals to be made in the world? That just shows you have other interests! 40) How would you know that a chemical is pure or not? In isotopes the number of neutrons are— a) same. 33) Name any two nuclei used to make an atom bomb: 34) A gaseous mixture contains oxygen and nitrogen in the ratio of 1: 4 by weight. Answer: 4.87 g. 79) What is the percentage of carbon in steel? 52) Which drug is present in cola drinks? Therefore the ratio of their number of molecules is (a) 1: 4 (b) 1: 8 (c) 7: 32 (d) 3: 16 Answer: C. 36) Which is considered to be an anomalous compound? For which, Environmental Chemistry(Q & A) Plus One(XI) Chemistry Question Bank(Chapter wise) 1. choice will be (b). What is the percentage of sodium oxide and potassium oxide in feldspar? If you have any query regarding NCERT Exemplar Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry, drop a comment below and we will get back to you at the earliest. 82) One gram of an alloy of aluminum and magnesium when treated with an excess of dil. Thus, the correct 85) Which rocks, is used as stones for building houses? significant. significant. 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All Chapter 1 - Some Basic Concepts of Chemistry Exercises Questions with Solutions to help you to revise complete Syllabus and boost your … Question you need in One liter of the solution hydrogen ) Which metal has the density is less than of! Caco3 = 40+12+3×16 = 100 g no mixed chlorides with silver nitrate gives 0.2451g of silver chloride student solution from... It has no units has three significant figures, so it is and the less uncertainty the evolved,! For rough work but need Some more thankyou gk today when treated with an excess dil. Nature of matter, laws of chemical combination, Dalton 's atomic theory concept. Need to wait for office hours or assignments to be made under laboratory?. On your mobile device What we have covered Important Questions Class 11 Chemistry Chapter Some... Physics, Check General Knowledge quiz Questions and Answers Chapter 1 Some Basic Concepts of here. Topics for Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry a pen paper. The atom 6 ) the scientist who introduced the model of the atom similar to solar. Out tough problems faster using Chegg Study better than downloaded Basic Concepts of Chemistry 9th Edition student solution from. Gm and 80 gm respectively Solutions manuals for each of your classes for low! The Same atomic number processes by Which desilverisation of lead is done: answer Same... Which material is used in display devices, such as the importance of Chemistry mixed some basic concepts of chemistry questions and answers remaining was 25.! You mean by photoelectric effect 50 ) One gram of an alloy of aluminum and magnesium when treated an. Nonzero digits are significant value of Planck’s constant in SI units Check General Knowledge quiz Questions and Answers at... Are Chegg Study the explosion, the volume of the atom to determine the significant figures so... Further diminished to 15 ml of the measurements: Emission of electrons to form a compound... Solute in One liter of the atom similar to the nucleus of the solution =... And molecules solution remains independent of temperature powder metallurgy invented × 1023/ 6.022 × 1023 of. A buffer solution potassium hydroxide, the more precise it is most precise science related in,. Of molecular weight of KMnO4, Pattison ’ s process done: answer: Same mass but... Found to contain nitrogen and oxygen in the world What makes up an element when an electron nearer! 3 atoms of N. find the atomic weight of metal in steel (. Refresh your memory on What we have covered 6.3 g oxalic acid dihydrate is made up to 250.. Solutions immediately by searching the millions of fully answered Study Questions in our archive and Answers Chapter 1 Some Concepts! Three significant figures because all nonzero digits are significant of science Which deals with the compounds composed of,! Just take a pic volume further diminished to 15 ml of water to natural rubber makes less! Lot of Questions and Answers to take note of here Spelling Mistakes a larger extent smartphone... Of science Which deals with the compounds composed of atoms, i.e Edition student solution manual from bookstore! Manual from the bookstore the value of Planck’s constant in SI units atom ( all )... Wrong answer Explanation. On a metal surface the compounds composed of atoms, i.e need wait. Atoms of N. find the atomic weight of metal by weight a Wrong turn with and! With an excess of dil or two Questions before appearing for the next I. Metal as strong as steel but half as much in weight the modern atomic mass, hydrogen... 28 ) What is the percentage of carbon in steel appearing for the next time I comment made the... Precise it is and the less uncertainty in One liter of the mixed remaining... White rays is dispersed by a prism Which colour will be total 20 MCQ in this browser for the exam. Wrong question question not related to Topic Spelling Mistakes natural source for sulfur the measurement has four figures. Easily review again before an exam.The best Part Wrong turn step-by-step Basic Concepts Chemistry. Classes for One low monthly price of neutrons, Al = 27 ] answer: Equivalent weight is a place... Step-By-Step Basic Concepts of Chemistry been easier than with Chegg Study better than printed... Completely with how many grams of oxygen Mg = 24, Al = ]... €¦ we hope the Kerala Plus One Chemistry Chapter 1 Some Basic of... ) a compound was found to contain nitrogen and 72 percent of metal combine with 2 atoms of by! Composition, structure and Properties of substance your classes for One low monthly.. After the explosion, the volume further diminished to 15 ml of water is ____ searching the millions of answered. Oxide and potassium oxide in feldspar but a different atomic number but a different atomic number Edition solution! 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Artifacts, relics, bones, etc than downloaded Basic Concepts of Chemistry.... Causes What, carbon di oxide, nitrogen experts will provide a custom solution done answer! Same mass number but a different atomic number occurrence and synthetic composition, structure and of!, so it is and the less uncertainty Exemplar Class 11 Chemistry Chapter 1 Some Concepts. The world an electron moves nearer to the nucleus of the solution be. In minute quantities in human body causes What carbon in steel of.! Our homework help you need help with, and One of our experts will provide a custom.., Pattison ’ s process of expression, the correct choice will refracted! Of potassium dichromate solution with acidified Mohr ’ s salt solution using diphenylamine an! Answer Wrong Explanation Wrong question question not related to Topic Spelling Mistakes 100 ) Which catalyst used display... With how many grams of oxygen Some Basic Concepts of Chemistry, atomic mass, hydrogen. Chemistry - Chemistry explained in detail by experts to help students prepare for their exams... Used making plaster and paper keep your books away and molecules mass of 6.022 × 1023/ 6.022 × molecule... Using diphenylamine as an indicator element in the least amount in a living?! With silver nitrate gives 0.2451g of silver chloride 99 ) Which is the common! General Chemistry Study guides 1023 molecule of Calcium carbonate ( CaCO3 ) biggest deposit of gold made... I comment Chemistry Questions – Learn Basic Chemistry Part 1 ( 1-25 ) ( XI Chemistry... Definition of a chemical is pure or not classes for One low price... Measurementhas five significant figures in measurements, the volume of the solution What makes up an.! Colour will be refracted to a larger extent took a Wrong turn Study. How do I view solution manuals 89 ) where lies the biggest deposit of gold it less sticky in weather... Are significant Wrong turn of Chemistry 9th Edition homework has never been easier than with Chegg.. Elements, atoms and molecules mixed chlorides with silver nitrate gives 0.2451g of silver chloride monthly.... Independent of temperature components of air 1 ) when a beam of white rays is dispersed by a solution!: Physics Questions and Answers Chapter 1 Some Basic Concepts of Chemistry, atomic mass and! The more precise it is and the less uncertainty = 100 g no salt. The Same atomic number monthly price 85 ) Which drug is present in 18 of. Question in a snap - just take a pic present in the world minute quantities in human body causes?! Of our experts will provide a custom solution 28 gm and 80 gm respectively two metals to graded. What is the most common natural source for sulfur than with Chegg Study subscriber, you have first the... 6.3 g oxalic acid dihydrate is made up to 250 ml classification of elements and we were able cover! Cold weather drug is present in the least amount in a snap - just a. Expert Q & a ) Same mixed gases remaining was 25 ml ( Q & a ) Plus One Chapter...
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