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Write balanced chemcial equations for th...

Write balanced chemcial equations for the preparation fo pure alumina from bauxite by Bayer process.

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UNITED BOOK HOUSE-HIGHER SECONDARY EXAMINATION 2018-EXAMPLE
  1. The standard electrode potential of Cu^(2+)|Cu half cell is +0.34V. Wh...

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  2. In a conductivity cell, the distance between the two Pt electrodes is ...

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  3. Write balanced chemcial equations for the preparation fo pure alumina ...

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  4. Write the balanced chemical equations how zinc blande is converted to ...

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  5. The general electronic configuration of d-block elements is

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  6. Why is TiCI2 paramagnetic but TiO2 is diamagnetic? (Atomic number of ...

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  7. Write the structure of product(s) of the following reaction.

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  8. In which of the following two compounds SN2 reaction is laster? Give r...

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  9. Write one harmful environmental effect of freons.

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  10. How would you distinguish between the following pair of compounds by a...

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  11. How would you convert?

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  12. Write down the products of the following reaction. CH3OCH2CH3overset(c...

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  13. Write the reagents for the following conversions:

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  14. Distinguish between the following two compounds by a chemcial reaction...

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  15. Distinguish between the following two compounds by a chemcial reaction...

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  16. What is meant by instrantaneous reaction rate?

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  17. What is activation energy ?

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  18. For a first order reaction , show that time required for 99% completio...

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  19. Establish the integrated rate equation for a first order reaction invo...

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  20. The half-life of a zero order reaction is x second. If the reaction ta...

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