This set of Class 11 Chemistry Chapter 3 Multiple Choice Questions & Answers (MCQs) focuses on “Modern Periodic Law and the Present Form of the Periodic Table”. 1. ____________ observed the X-rays’ characteristics. a) Henry Moseley b) Mendeleev c) Pauli d) Newland 2. The graph of Vs Z gives a straight line. a) True b) … Read more
This set of Class 11 Chemistry Chapter 3 Multiple Choice Questions & Answers (MCQs) focuses on “Classification of Elements and Periodicity in Properties”. These MCQs are created based on the latest CBSE syllabus and the NCERT curriculum, offering valuable assistance for exam preparation. 1. __________ gave the idea for the first time to classify elements … Read more
This set of Class 11 Chemistry Chapter 2 Multiple Choice Questions & Answers (MCQs) focuses on “Quantum Mechanical Model of Atom”. 1. The principal quantum number describes ____ a) energy and size of the orbit b) the shape of the orbital c) spatial orientation of the orbital d) the spin of the electron 2. What … Read more
This set of Class 11 Chemistry Chapter 2 Multiple Choice Questions & Answers (MCQs) focuses on “Towards Quantum Mechanical Model of the Atom”. 1. Who found out about dual behavior of a matter? a) De Broglie b) Bohr c) Rutherford d) Thomson 2. A ball of mass 0.5kg is moving with velocity 6.626 m/s. What’s … Read more
This set of Class 11 Chemistry Chapter 2 Multiple Choice Questions & Answers (MCQs) focuses on “Bohr’s Model for Hydrogen Atom”. 1. Angular momentum of an electron is quantized. a) True b) False 2. The energy of 1st orbit in a hydrogen atom __________ a) 3.18×10–12 J b) –2.18×10–18 J c) –3.18×10–18 J d) 2.18×10–18 … Read more
This set of Class 11 Chemistry Chapter 2 Multiple Choice Questions & Answers (MCQs) focuses on “Developments Leading to the Bohr’s Model of Atom”. 1. What’s the wavelength for the visible region in electromagnetic radiation? a) 400 – 750 nm b) 400 – 750 mm c) 400 – 750 μm d) 400 – 750 pm … Read more
This set of Class 11 Chemistry Chapter 2 Multiple Choice Questions & Answers (MCQs) focuses on “Structure of Atom”. These MCQs are created based on the latest CBSE syllabus and the NCERT curriculum, offering valuable assistance for exam preparation. 1. What is the absolute charge of a proton? a) +1.602176×10-27 b) –1.602176×10-19 c) +1.602176×10-19 d) … Read more
This set of Class 11 Chemistry Chapter 2 Multiple Choice Questions & Answers (MCQs) focuses on “Discovery of Sub-atomic Particles”. 1. Which of the following may be an incorrect statement regarding cathode ray discharge tube? a) Presence of negative charge in cathode rays b) The magnetic field deflects these rays c) It needs high voltage … Read more
This set of Class 11 Chemistry Chapter 1 Multiple Choice Questions & Answers (MCQs) focuses on “Stoichiometry and Stoichiometric Calculations”. 1. In a particular reaction, one of the reactants limits the number of products formed. That is called as _______ a) Limiting reagent b) Limiting product c) Excessive reagent d) Excessive reactant 2. Which of … Read more
This set of Class 11 Chemistry Chapter 1 Multiple Choice Questions & Answers (MCQs) focuses on “Percentage Composition”. 1. A _______ formula represents a whole number ratio to the simplest form. a) Molecular b) Empirical c) Simpler d) Shorter 2. Even without knowing the mass percent of each element, we can calculate the empirical formula. … Read more
