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Group 2 elements are denser and harder t...

Group 2 elements are denser and harder than group 1 elements. Why ?

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OMEGA PUBLICATION-SAMPLE QUESTION PAPER -v (PUNJAB)-QUESTION
  1. Write IUPAC name of the following compounds CH(3)-CH = CH-C = CH

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  2. Out of the following plants which are known as herbs- Mango tree, Basi...

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  3. Why tirtary carbocations are more stable than, secondary and primary c...

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  4. Give the chemistry of Solvay process for the manufacture of Na(2)CO(3)...

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  5. Group 2 elements are denser and harder than group 1 elements. Why ?

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  6. What is isotopic effect?

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  7. How does H(2)O(2) reacts with : ( a) PbS (b) Acidified FeS0(4)

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  8. Explain why H2O is a liquid but H2S is a gas at room temperature.

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  9. Give the chemistry of Borax bead test.

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  10. Calculate the formal charge on each O-atom in O3.

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  11. Define bond order. What is its importance? Calculate bond.order in 0(2...

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  12. Explain the quantum number n, l and m. Also give the physical signific...

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  13. Calculate de Broglie's wavelength associated with an electron moving w...

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  14. Derive de Broglie’s equation.

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  15. What is the difference between matter waves and electromagnetic waves?

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  16. How will you convert C(2)H(2) into (a) Acetaldehyde (b) 1,1-Dichloroe...

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  17. Describe the orbital picture of C2H2.

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  18. Explain Markownikov's rule.

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  19. Give the laboratory preparation of ethene.

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  20. What is the mechanism of chlorination on ethane.

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