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Why CaCl2 is used to melt the ice deposi...

Why `CaCl_2` is used to melt the ice deposited on road?

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CaCl_2 is preferred over NaCI for clearing ice on roads particularly in very cold countries. This is because

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why ice floats on water?

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Anhydrous CaCl_2 is used as a dehydrating agent- why?

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UNITED BOOK HOUSE-SET-11-Exercise
  1. Why phosphorus as an impurity increases conductivity of silicone?

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  2. Silver forms fcc lattice with edge length 409 pm calculate density of ...

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  3. Why CaCl2 is used to melt the ice deposited on road?

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  4. The cell used in watch has the following cell reaction. Calculate E^@ ...

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  5. State Kohlrausch law of independent migration of ion.

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  6. 0.0024 (M) Acetic acid solution has specific conductance 7.896xx10^-5 ...

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  7. What is the role of stabilizer and depressant in froth flotation proce...

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  8. Which element of lanthanoid shows +4 oxidation state?

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  9. Why Ag is considered to be a transitional element though it has d^10 g...

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  10. Complete the reaction : MnO4 + C2O4^(2-) + H^+ rarr

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  11. Why Gadolinium (Z=64 and Lutetium (Z=71) shows +3 oxidation state?

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  12. State with chemical equation when pH is excessively reduced for aqueou...

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  13. Why 2% enthanol is mixed in preservation of chloroform?

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  14. Identify A rarr D CH3Br + Mg overset(Dry)underset(ether) rarr A overse...

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  15. Identify A to D

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  16. Why orthomethoxy phenol has less acidic nature than nitrophenol?

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  17. What will happen when C6H5overset(oplus)N2overset(Theta)Cl as added to...

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  18. How would you carry out the following conversion Propene rarr Propan-1...

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  19. Which of the following metals can be purified by electrorefining?

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  20. What will happen when aniline is heated with oleum at 180^@C?

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