Chapter 1 : Basic Concepts of Chemistry :- 1. Calculate mass in grams of a) An atom of Sulphur. b) A molecule of H2O 2. What is Molarity and Molality . Differences between them ? 3. What is law of multiple proportion ? 4. Calculate the molecular formula of an oxide of Fe contain 69.9g and 30.1g of Fe and O respectively in percentage mass. ( Molar mass of oxide = 159.8 g/mol and Fe = 55.85 , O = 16.00 ) 5. What Will be mass of 01 Mole NaCl and 02 Mole of H²O. 6. Law of Definite Proportion. Chapter 2: Structure of Atom : - 1. What is dual nature of substance ? Establish De-Broglie equation. 2. What are four quantum numbers. Explain. 3. What is emissions Spectra ? Write the Postulate of Bohr's Atomic Model . 4. What is Pauli's Exclusion Principle . Write it's two Application . 5. Explain Heisenberg uncertainty Principle. Chapter 3 : Classification of Elements and Periodicity in Properties :- 1. Why Electron Affinity of Be and Mg is Ze
Chapter 1 : Solid State : - 1. Explain The Following a. Tetrahedral Voids b. Doping c. Octrahedral void formed by sphere 2. Explain the following ( 4 Mark ) a. Body Centred Cubic b. Face Centred Cubic 3. Explain the following ( 4 Mark ) a. Frankel Defect b. Schottky Defect 4. Write any four Difference between Crystalline Solid and Amorphous solid. (4Marks) 5. What are tetrahedral and Octahedral Voids? What is their ratio in close Packing Arrangements . ( 4 Marks) 6. Semiconductors. N - type and P - type semiconductors. 7. Ferromagnetism, Antiferromagnetism . Chapter 2 : Solution : - 1. Define Molarity and Molality, And Write it's Formula. ( 2M ) 2. What is Mole fraction ? Write it's Formula. ( 2 M) 3 . A) Define molal boiling point elevation constant . ( 1M ) B) why is it safe to inject 0.9% sodium chloride into a vein . ( 2M ) 4. 2.46 gm NaOH (Molar mass = 40) is dissolved in 100 cm3
Michnar Hills - मिचनार की पहाड़ी We all are aware of places like chitrakot , tirathghar , kotomsar gufa , etc tourist places near Capital of bastar known as Jagdalpur. But their is another one lessor known but not less in advanture . Michnar is located near jagdalpur . location code or village code of Michnar village is 449214. Michnar village is located in Lohandiguda Tehsil of Bastar district in Chhattisgarh, India. It is situated 20km away from sub-district headquarter Lohandiguda and 50km away from district headquarter Jagdalpur . Michnar has a total population of 2,409 peoples. There are about 629 houses in Michnar village. Jagdalpur is nearest City to Michnar which is approximately 50km away - we have to Go Jagdalpur to Raikot and then from Raikot to michnar . - the total length of michnar hills is near by 37-45 km ( correct data is not available ). - At the top of hill their is a cave . where local dhurva tribe and o
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