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CHHAYA PUBLICATION-s-BLOCK ELEMENTS -EXERCISE (SHORT-TYPE QUESTIONS)
- The halides of berylium dissolve in organic solvents but those of bari...
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- Which out of Ca(OH)2 and Mg(OH)2 is more soluble in water and why ?
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- MgCO3 is more soluble in water than CaCO3. Give reason.
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- Which out of Mg(OH)2 & Ca(OH)2 is a stronger base and why ?
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- Anhydrous CaCl2 is used as a dehydrating agent- why?
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- Discuss the biological importance of Ca^(2+) and Mg^(2+) ions.
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- Discuss the biological importance of Na^(+) and K^(+) ions.
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- Lil is more soluble than KI in ethanol. Explain.
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- MgSO4 is more soluble in water than SrSO4 and decomposes at a much low...
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- The aqueous solution of sodium carbonate is alkaline - why?
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- K2CO3 cannot be prepared by Solvay process - why?
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- How can pure NaCI be prepared from common impure NaCl?
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- Why does common salt become wet in rainy season?
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- With the help of a drop of an indicator solution, how would you know w...
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- The thermal decomposition of CaCO3 is a reversible reaction: CaCO3 hAr...
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- How can fused calcium chloride be prepared? Give two important uses of...
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- State with reactions, what happens when sulphur dioxide is slowly pass...
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- What happens when- quicklime is heated with silica,
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- What happens when- hydrated magnesium chloride is heated in presence o...
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- What do you mean by setting of Plaster of Paris?
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