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Find the position of the element having ...

Find the position of the element having atomic number 21 in the periodic table (modern) Indicate the block in which it comes?

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UNITED BOOK HOUSE-MODEL QUESTION PAPER 18-EXERCISE
  1. Derive de Broglies wave particle dnality eqn. Which quantum number is ...

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  2. Arrange with proper expiation in ascending order of Basisity of the fo...

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  3. Find the position of the element having atomic number 21 in the period...

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  4. What is sigma and pi bond? Which one is stronger among them?

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  5. The bond length and dipole moment of the covalent compound AB is 1.2 o...

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  6. Write the Vander Walls equation for n'mole of the real gas.

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  7. For the following reaction at 298K 2X + Y rarr Z DeltaH = 300 kj m...

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  8. What is state function? Give example what do you mean by intrernal ene...

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  9. Balance the equation by oxidation number method. K2Cr2O7 +FeSO4 + H2SO...

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  10. What is the oxidation sate of Cr in CrO(5)?

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  11. What is volume strength? Which one is more powerful 10 volume and 10% ...

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  12. Classify the hydrides into Covalent, Interstital, electron deficient ,...

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  13. State two reason for abnormal behaviour of Be.

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  14. Why BeF2 is highly soluble in water.

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  15. Given IUPAC name of the following Compound.

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  16. Given IUPAC name of the following Compound. CH3-CH (CH3)- CH (Br)-COOH

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  17. How would you determine the presence of sulphur in organic compound.

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  18. When NH4SCN is added to the aquous solution of FeCl3 the solution turn...

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  19. State the nature of CO, Geo. SnO, & PbO. Which allotrope of carbon isu...

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  20. What is per halosilanes? How would you prepare per halosilanes. Write ...

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