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are two tripositive, lanthanides ions wh...

____are two tripositive, lanthanides ions which are colourless.

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The correct Answer is:
`La3+`, `Lu3+`
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MODERN PUBLICATION-TEST PAPER 6-EXERCISE
  1. Number of particles present per unit cell of HCP crystal is .

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  2. The unit of rate constant for a zero order reaction is

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  3. are two tripositive, lanthanides ions which are colourless.

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  4. How does the nature of central metal ion influence the formation and s...

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  5. Give reason: Zinc oxide becomes yellow on heating

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  6. After five half iife periods for a first order reaction what fraction ...

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  7. Name four applications of electrolysis

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  8. What is the effect of temperature on chemisorption ?

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  9. Explain why nitrogen is inert as compared to phosphorus.

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  10. In cupramine sulphate complex find out the oxidation number and coordi...

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  11. Match the following

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  12. what is iodoform reaction? give an equation

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  13. With reference to which classification has the statement "ranitidine i...

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  14. What is the crystal field stabilisation energy? How does the magnitude...

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  15. Differentiate between coagulation and peptization.

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  16. Give the principle of the preparation of Nylon 6.

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  17. What is lanthanide contraction? Write any two of its consequences.

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  18. What are the secondary valencies ?

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  19. Give classification of proteins on the basis of their functions.

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  20. How can you get acetic acid from methyl chloride ?

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