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Which alkaline earth metal hydroxide and...

Which alkaline earth metal hydroxide and alkali metal carbonate are used for softening of hard water?

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`Ca(OH)_2 and Na_2CO_3`
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CHHAYA PUBLICATION-s-BLOCK ELEMENTS -EXERCISE (VERY SHORT-TYPE QUESTIONS)
  1. Which alkaline earth metal hydroxide is most soluble in water?

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  2. Which alkaline earth metal imparts crimson colour to flame?

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  3. BeO is covalent but still it has high melting point- why?

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  4. What is anhydrone?

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  5. Which alkaline earth metal carbonate can be kept only in an atmosphere...

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  6. Which alkaline earth metal chloride is used as a desiccant in the labo...

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  7. The basic strength of which alkali metal hydroxide is the highest?

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  8. Which alkaline earth metal hydroxide is amphoteric in nature?

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  9. How will you distinguish between Ba(OH)2 and Be(OH)2 ?

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  10. What are the raw materials used for the manufacture of washing soda by...

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  11. What is soda ash?

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  12. Which alkaline earth metal hydroxide and alkali metal carbonate are us...

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  13. What is the formula of Plaster of Paris?

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  14. What is dead burnt plaster?

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  15. Which alkaline earth metal carbonate is used as an ingredient of chewi...

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  16. What is fusion mixture?

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  17. What is the most abundant source of sodium chloride?

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  18. Forwhich ofits chiefproperty is Plaster of Paris widely used?

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  19. What is used for making black board chalks?

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  20. Which compound is generally used for the detection of CO2 in the labor...

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