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Historical research was driven to focus in depth on various aspects of women’s life.

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Explain the following concepts. Annales School

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Explain the following concepts. Dialectics

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(B) Identify the wrong pair in the following, correct it and rewrite. Georg Wilhelm Friedrich Hegel – ‘Reason in History’

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(A) Choose the correct option from the given options and complete the sentences. (1) It may be said that

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Predict the shape and bond angles in the following molecules: a. CF4 b. NF3 c. HCN d. H2 S

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Define : a. Bond Enthalpy b. Bond Length

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In case of bond formation in Acetylene molecule : a. How many covalend bonds are formed ?

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BF3 molecule is planar but NH3 pyramidal. Explain

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F-Be-F is a liner molecule but H-O-H is angular. Explain.

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Identify the type of orbital overlap present in a. H2 b. F2 c. H-F molecule. Explain diagramatically

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Which type of hybridization is present in ammonia molecule?

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Give reasons for: a. Sigma (σ)bond is stronger than Pi (π)bond. b. HF is a polar molecule

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In Ammonia molecule the bond angle is 1070 and in water molecule it is

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Explain geometry of methane molecule on the basis of Hybridisation

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Give reasons for need of Hybridisation

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Explain in brief with one example: a. Ionic bond b. covalend bond c. co-ordinate bond

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State octel rule. Explain its inadequecies with respect to

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Display electron distribution around the oxygen atom in water molecule and state shape of the molecule, also write H-O-H bond angle.

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Distinguish between sigma and pi bond

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