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Give the formula and valency of : alumin...

Give the formula and valency of : aluminate __________ __________

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ICSE-THE LANGUAGE OF CHEMISTRY-EXCERCISE 1 (A)
  1. Explain the terms 'valency' and 'variable valency'.

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  2. How are the elements with variable valency named ? Explain with an exa...

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  3. Give the formula and valency of : aluminate

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  4. Give the formula and valency of : chromate

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  5. Give the formula and valency of : aluminium

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  6. Give the formula and valency of : cupric

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  7. What is a chemical formula?

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  8. What is the significance of a formula ? Give an example to illustrate.

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  9. What do you understand by the Acid radical ?

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  10. What do you understand by the Basic radical?

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  11. Select the basic and acidic radicals in the MgSO4.

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  12. Select the basic and acidic radicals in the (NH4)2SO4.

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  13. Select the basic and acidic radicals in the Al2(SO4)3.

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  14. Select the basic and acidic radicals in the ZnCO3.

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  15. Select the basic and acidic radicals in the Mg(OH)2.

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  16. Write chemical formulae of the sulphates of Aluminium, Ammonium and Zi...

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  17. The valency of an element A is 3 and that of element B is 2. Write the...

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  18. Write the basic radicals and acidic radicals of the following and then...

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  19. Write the basic radicals and acidic radicals of the following and then...

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  20. Write the basic redicals and acidic radicats of the following and then...

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