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Fill in the blanks- and are the two ch...

Fill in the blanks- _________ and _________ are the two characteristics of living organisms.

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There are five d-orbitals in an energy level and each orbital contain two electrons. As we move from one element to the next, an electron is added for complete filling the five d -orbitals in which 10 electrons are required
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ACCURATE PUBLICATION-D & F BLOCK ELEMENTS -1 OR 2 MARK QUESTIONS
  1. What are transition elements ? Which of the d block elements are not r...

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  2. Why transition elements are called d-block elements ?

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  3. Fill in the blanks- and are the two characteristics of living organi...

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  4. Write the general electronic configuration of transition elements.

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  5. Name any three elements of transition series which have abnormal elect...

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  6. What is general electronic cnfiguration difference between transition...

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  7. Which of the following are d-block elements but not regarded as transi...

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  8. Why do the transition metals componds are coloured ?

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  9. State the chemical symbols for the following elements : sodium , potas...

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  10. Name any three coinage metals ? Are these transition metals ?

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  11. Which of the following is not a d-block element?

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  12. Zn and Cd are not normally considered as transition metals. Why ?

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  13. Why do transition elements show similarities along the horizontal peri...

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  14. Name a transition element which does not exhibit variable oxidation st...

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  15. Write the highest oxidation state of elements with atomic number 23 ?

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  16. Which electrons loose an iron atom in forming Fe (II) ions ?

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  17. What is the maximum oxidation state shown by Manganese in its compound...

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  18. What is the oxidation state of Cr in K2Cr2O7?

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  19. Why +3 oxidation state of Fe (Z = 26) is more stable than its +2 oxida...

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  20. How many are the number of unpaired electron in ferrous ion ?

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