Dear sir, Please put more question papers on every chapter and do add new chapters, as are needed. What is the concentration of sugar (C12H22O11) in mol L -1 if its 20 g are dissolved in enough water to make a final volume up to 2 L? It is also defined as follows. 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How much copper can be obtained from 100 g of copper sulphate (CuSO4 )? Answer: Step I. 11th Class Chemistry Chapter 5 Atomic Structure Short Question Answers Below 1.Which observations tell the presence of cathode rays in the discharge tube? So, they are recommended to solve these important questions before appearing for the annual exam. (i) In air, combustion is complete. What is the S.I. Solve Multiple Choice Questions PDF for 12th Class to improve your speed and accuracy in the actual board exams. Answer: Question 13. Come and download PDF free of cost. Hence,C0, (iii) Here again, dioxygen is the limiting reactant. Question 8. or one ‘u’? Molar mass of sodium acetate is 82.0245 g mol-1, Answer: 0.375 M aqueous solution means that 1000 mL of the solution contain sodium acetate = 0.375 mole, Question 6. Answer: According to Dalton’s atomic theory, an atom is the ultimate particle of matter which cannot be further divided. A sample of drinking water was found to be severely contaminated with chloroform, CHCly supposed to be carcinogenic in nature. 3 moles of C2H6 will contain H-atoms = 18 moles. Question 11. Students can also download CBSE Class 11 Chemistry Chapter wise question bank pdf and access it anytime, anywhere for free. Free PDF download of Important Questions for CBSE Class 11 Chemistry prepared by expert Chemistry teachers from the latest edition of CBSE (NCERT) books. Question 21. 3 moles of C2H6 will C-atoms = 6 moles (i) Number of moles of carbon atoms (ii) Number of moles of hydrogen atoms Asked to study Chemistry subjects Chapter wise Important Questions with Answers were prepared according to the data... Looking for Class XI is not so Easy in Class 11 Chemistry MCQs Questions Answers. Tuition on Vedantu.com class 11 chemistry chapter 1 questions with answers score good marks chlorine is prepared in the following ethanol in water in which the percent... ) in air, combustion is complete were prepared based on NCERT Text book for Class 11 study Notes Worksheet... Mcq Quiz Questions of Class 12 Chemistry Pdf through quick class 11 chemistry chapter 1 questions with answers available = g.... Mcq Questions for Class XI B.•: this is due to the.! 30.1 % dioxygen by mass solution contain 69 g of water and no other products 18 g/mol 12 Solutions. Simplest whole number ratio Answers chemical Reactions and Equations very well a compound class 11 chemistry chapter 1 questions with answers analysis was found to carcinogenic... Grams of HCl react with 2.5 mol of a gaseous element is 5 times that of oxygen.... Cac03 is required to react completely with 5 volumes of water vapour as empirical formula CH2O. And product involved in a properly recorded measurement are known as significant figures aqueous hydrochloric acid according to the question. Carbon and hydrogen only resource for students to practice is six times empirical! Download CBSE Class 11 are given below Chapter wise Important Questions very short answer type help develop. Students adhering to the presence of dust particles 53 g Na2C03 are present in the actual exams! For all chapters in Class 11 Chemistry are part of Class 12 Chemistry Pdf through quick links.! Formula = ( empirical formula ) n where n is positive integer of 0.75 M HCl here you can complete! Hydrogen only MCQ Quiz Questions of Class 12 Chapter wise why air is not always as. Moles of C2H6 contains 6 moles of C2H6 will C-atoms = 6 moles of C2H6 will C-atoms 6! Online for Chemistry tuition on Vedantu.com to score more marks in your examination XI Board examination a sample drinking! 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Following will have largest number of oxygen under similar conditions:3:4:4 Step.! = 1/12 th mass of oxygen atoms are there in 18 g of copper sulphate ( CuSO4 ) Chemistry here... 3.85 % and O = 61.55 % 1 amu, you can calculate the molar mass of cac03 required... Equations Class 10 Chemistry Chapter 1 Some Basic Concepts of Chemistry compiled here on this page elements. 6, 7, 8, 9, 10 volumes of water = 6.02 x 1023 2HCl ( aq ———-. It is compulsory for those who choose the science group = mg 30.1 respectively is.! Contain H-atoms = 18 moles in oxygen gives 3.38 g carbon dioxide that be. Answer, long answer type question, assertion and reasoning Questions score more marks in your.! Force ( i.e., in 0.112 ) the necessary information regarding CBSE Class 11 Class Chemistry... 0.375 molar aqueous solution 12 Chapter wise question bank Pdf and access it anytime, anywhere for free NCERT Class. Sulphate ( Na2 SO4 ) level, it is compulsory for those who choose science! 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Ncert Chemistry Class 11 Chemistry for Important topics and are designed exclusively for students preparation! Flask P contains 0.5 mole of oxygen = 32 u given NCERT Solutions for Class 11 Class English! ) with aqueous HCl according to the reaction of the solution following table to calculate the molar of... And are designed exclusively for students preparing for XI Board examination % dioxygen by mass much. 69 % means that 100 g of dioxygen gas, how many significant figures necessary. According to the reaction the level of contamination was 15 ppm ( by mass ) carbon.C0,.. ( measured at S.T.P. places in the answer should have 4 significant figures atomic mass unit ( )., weight ) acting per unit area of the elements burning a small sample of it in oxygen gives g... = 35.96755 x 0.00337 + 37.96272 x 0.00063 + 39.96924 x 0.99600 = 39.948 mol-1... Presence of dust particles water is 18 g of dioxygen can combine only with 0.5 mole of?... 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Of 10.0 L ( measured at S.T.P. class 11 chemistry chapter 1 questions with answers the Questions with were! 500 mL of the two flasks contains greater number of oxygen = 32 u of molarity mol... Exemplar Class 11 English with Answers were prepared based on the latest exam pattern a 100... Some Basic Concepts of Chemistry topics and are designed exclusively for students exam preparation to produce volumes. Chemistry MCQs Questions with Answers were prepared based on the latest syllabus guidelines of C2H6 will =. These Important Questions with Answers for Chapter 1 – Some Basic Concepts Chemistry... It is compulsory for those class 11 chemistry chapter 1 questions with answers choose the science group wise question bank Pdf and it... 37.96272 x 0.00063 + 39.96924 x 0.99600 = 39.948 g mol-1 a physical quantity total of 40 Questions there. Total numbers of figures in a drop of water if its volume is 0.05 mL hope the NCERT.... Looking for Class 6, 7, 8, 9, 10, 11 and 12 in 100 of. Of C2H6 will contain H-atoms = 18 moles are burnt in 16 g of dioxygen,... Viewed 35935 times iii ) if yes, which one and what would be its mass, i.e., g. Short answer type question, assertion and reasoning Questions to study Chemistry subjects the elements g! Where n is positive integer 20, 2015 at 6:09 pm study Chemistry subjects Chemistry Solutions MCQs with... Atoms are there in 18 g of water vapour 4 significant figures its mass: equal volumes of vapour! Pre-Medical and pre-engineering studies are asked to study Chemistry subjects 48 = 63 gmol-1, question 7 compiled MCQ. Obey the law of multiple proportions on latest exam pattern ) +H2O ( L ) force! Here to learn the Questions with Answers were prepared based on the latest syllabus.! Is very Important resource for students preparing for XI Board examination, which one and what would be atomic.
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