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Density

25 Which is m...

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25 Which is more soluble in water MgF2 or CaF2 and why??

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Q. Arrange the following in increasing order of solubility in

H_{2} O

M g F_{2}, C a F_{2}, A g F

L i F, B e F_{2}, N a_{3} P O_{4}, K_{3} P O_{4}, B a F_{2}, M g F_{2}, L i_{3} P O_{4}, N a F, C s F, C a F_{2}, M g_{3} (P O_{4})_{2}

Among the following compounds, a number of compounds that is NOT completely soluble in water is:

C a F_{2}

is soluble in water but

C a I_{2}

is not soluble in water. Reason:

C a F_{2}

is more ionic than

C a I_{2}

Read the above assertion and reason and choose the correct option regarding it.

Q. Lattice energies of

B e F_{2}, M g F_{2}, C a F_{2} a n d B a F_{2}

- 2906, - 2610, - 2459, a n d - 2367 k J m o l^{- 1}

, respectiely. Hydration energies of

B e^{2 +}, M g^{2 +}, C a^{2 +}, B a^{2 +}, a n d F^{-}

- 2494, - 1921, - 1577, - 1305, a n d - 457 k J m o l^{- 1}

, respectively. Which of the flourides is not soluble in water.

N a F

M g F_{2}

, which is formed more easily?

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