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Contrast the action of heat on the follo...

Contrast the action of heat on the following and explain your answer
(i)` Na_(2)CO_(3)` and `CaCO_(3)`
(ii) `MgCl_(2).6H_(2)O`and `CaCl_(2).6H_(2)O`
(iii) `Ca(NO_(3))_(2) and NaNO_(3)`

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Which of the following pairs can be distinguished by action of heat? i. K_(2)CO_(3) and CaCO_(3) ii. Na_(2)CO_(3) and Mg(NO_(3))_(2) iii. Mg(NO_(3))_(2) and NaNO_(2)

Na_(2)CO_(3)+Pb(NO_(3))_(2) to PbCO_(3)darr+NaNO_(3)

Complete the following equations (i) I_(2)+O_(3)+H_(2)O to HIO_(3)+ ….. , (ii) CaS+H_(2)O + CO_(2) to …. +…..

Compolete the following equations : (i) Na_(2)O_92)+ 2H_(2) O to (W) +H_(2)O_(2) (ii) 2KO_(2)+2H_(2)O to (X) +(Y) +O_(2) (iii) Na_(2) O+ CO_(2)to (Z).

Balance the following chemical equations. (i) HNO_(3) + Ca(OH)_(2) rarr Ca(NO_(3))_(2) + H_(2)O (ii) NaOH + H_(2)SO_(4) rarr Na_(2)SO_(4) + H_(2)O (iii) NaCl + AgNO_(3) rarrAgCl +NaNO_(3) (iv) BaCl_(2)+H_(2)SO_(4) rarr BaSO_(4) + HCl

Write the empirical formulae of the following compounds. (i) C_(6)H_(6) (ii) Na_(2)CO_(3) (iii) C_(6)H_(12)O_(6) (iv) H_(2)O_(2) (v) CH_(3)COOH (vi) CuSO_(4)

MODERN PUBLICATION-S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS ) -Revision Exercises (Objective/Very Short answer questions( Short Answer Questions ) )
  1. Describe a method for the preparation of quicklime. What happens when ...

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  2. What is the difference between quick lime, slaked lime, milk of lime a...

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  3. Contrast the action of heat on the following and explain your answer ...

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  4. State as to why (a) a solution of Na(2)CO(3) is alkaline ? (b) alk...

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  5. In what ways lithium shows similarities to magnesium in its chemical b...

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  6. State the effect of heat on (i) gypsum (ii) limestone (iii) epsom s...

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  7. CEMENT

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  8. Write three general characteristics of the s-block of the periodic tab...

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  9. What happens when a. Sodium metal is dropped in water? b. Sodium m...

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  10. Compare the solubility and thermal stability of the following compound...

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  11. Give reasons for the following. a. LiCI is more covalent than KCI. ...

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  12. What is the reaction occuring at the anode in Down's process for the e...

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  13. Describe the preparation ofeach of the following starting with limesto...

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  14. In what ways lithium shows similarities to magnesium in its chemical b...

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  15. Present a comparative account of the alkali and alkaline earth metals ...

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  16. Beryllium exhibits some similarities with aluminium. Point out four su...

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  17. Explain the trends in the solubility of carbonates , sulphates and hyd...

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  18. Draw the structure of (i) BeCl2 (vapour) (ii) BeCl2 (s)

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  19. Starting from sodium chloride, how will you proceed to prepare (i) sod...

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  20. "The chemistry of beryllium is not essentially ionic" Justify the stat...

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