CBSE Class 12 Chemistry HOTs Chemistry in Everyday Life

  VERY SHORT ANSWER TYPE QUESTIONS  Question. Write the formula and IUPAC name of aspirin. Answer. Question. Name the type of drugs having following structural formula : Answer. Sulpha drugs Question. Name two types of the drugs classified on the basis of…

CBSE Class 12 Chemistry HOTs Biomolecules

  MULTIPLE CHOICE QUESTIONS Question. Which of the following statement is not true about glucose? (a) it is an aldohexose (b) on heating with HI it forms n-hexane (c) it is present in furanose form (d) it does not give 2, 4-DNP test Answer. C Question. …

CBSE Class 12 Chemistry HOTs The Solid State

CHAPTER:1,THE SOLID STATE   Case Based Questions :   Crystalline solids have a sharp melting point and sharp boiling when it reaches a particular temperature.The shape of crystalline solids are definite and having typical arrangements of particles. They…

CBSE Class 12 Chemistry HOTs Surface Chemistry

Chapter-5 Surface Chemistry Question. A colloidal solution can be purified by the following method : (A) dialysis (B) peptization (C) filtration (D) oxidation Answer : A Question. Which of the following is not a gel? (A) Cheese (B) Jellies (C) Curd (D) Milk Answer : D…

CBSE Class 12 Chemistry HOTs Polymers

  VERY SHORT ANSWER TYPE QUESTIONS   Question. Define the term ‘homopolymerisation’ giving an example. Answer. The polymer formed by the polymerization of single/same monomeric species is known as homopolymerisation. E.g., Polythene/PVC/Polypropene. …

CBSE Class 12 Chemistry HOTs p Block Elements

  CHAPTER:7, p – BLOCK ELEMENTS   Case Based Questions :   Read the Passage given below and answer the following questions. Ozone is an unstable, dark blue diamagnetic gas. It absorbs the UV radiations strongly, thus protecting the people on earth…

CBSE Class 12 Chemistry HOTs Haloalkanes And Haloarenes

  CHAPTER:10 HALOALKANES AND HALOARENES   Case Based Questions :   Free radical chlorination or bromination of alkanes usually gives a complex mixture of isometric mono and poly- haloalkane which is difficult to separate into pure compounds .…

CBSE Class 12 Chemistry HOTs General Principles And Processes Of Isolation Of Elements

CHAPTER:6, GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS   1 - MARK QUESTIONS   1. Name an ore having two different metal ions. 1   2. What are the oxidation states of iron in Fe3O4? 1   3. What is Self-Electronation? 1   4. Which Substance is added to molten iron…

CBSE Class 12 Chemistry HOTs Electrochemistry

Question. If 96500 coulomb electricity is passed through CuSO4 solution, it will liberate (a) 63.5 gm of Cu (b) 31.76 gm of Cu (c) 96500 gm of Cu (d) 100 gm of Cu Answer. B Question. Fused NaCl on electrolysis gives ………….. on cathode. (a) Chlroine (b) Sodium (c) Sodium…

CBSE Class 12 Chemistry HOTs d and f block Elements

  Chapter-8 d and f block Elements     Question. Silver atom has completely filled d orbitals in its ground state. How can you say that it is a transition element? Answer: It forms AgF2 a dark brown crystalline solid   Question. Transition…

CBSE Class 12 Chemistry HOTs Chemical Kinetics

  CHAPTER:4, CHEMICAL KINETICS   1 - MARK QUESTIONS   Question. The half life period of two samples are 0.1 and 0.4 seconds. Their initial concentrations are 200 and 50 mol L -1 respectively. What is the order of reaction?  Answer: When the initial…

CBSE Class 12 Chemistry HOTs Answers to HOTs Question Database

HINTS: CHAPTER:1 1. 4 15. 123.8pm 16. 438pm 17. 2.786 ×10-23c.c 25. .268.8 pm 26. 346.4pm 27. fcc,141.4 pm 28. i) 1.5463 g cm-3 ii) 1.5448 g cm-3 HINTS: CHAPTER:2 9. 9.22 mol kg-1 10. 38.7 g 12. 256.5 g mol-1 13. 270.21 K 14. 75 % 16. 83 % 17. 243.92 HINTS: CHAPTER:3 10.…

CBSE Class 12 Chemistry HOTs Animes

  VERY SHORT ANSWER TYPE QUESTIONS  Question. Write IUPAC name of CH3NC. Answer. Methane carbylamine. Question. Convert m-dinitrobenzene to m-nitro aniline. Answer. Question. Draw structure of TNT, an explosive. Answer. Question. Write IUPAC name of…

CBSE Class 12 Chemistry HOTs Aldehyde Ketones And Carboxylic Acids

  SHORT ANSWER TYPE QUESTIONS  Question. How will you convert : (i) C2H2 → CH3COOH (ii) C6H5CONH2 → C6H5COOH Answer: Question. Complete the following : Answer:   Question. An organic compound X has molecular formula C5H10O. It does not reduce…

CBSE Class 12 Chemistry HOTs Solutions

  UNIT - 2 SOLUTIONS 1 Marks Questions 1. A 500 gm of toothpaste sample has 0.2 g of fluoride concentration. What is the concentration of fluoride in terms of ppm level? 2. Two liquids A and B boil at 1350C and 1850C respectively. Which of them has a higher…