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Geo Dynamo and Solar Winds

The correct o...

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The correct order of melting point is: (a) BeO > CaO > MgO (b) MgO > CaO > BeO (c) CaO > MgO > BeO (d) BeO > MgO > CaO

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Q. Select the correct order for the given properties -
I) Thermal Stability:

B a S O_{4} > S r S O_{4} > C a S O_{4} > M g S O_{4}

II) Basic Nature:

Z n O > B e O > M g O > C a O

III) Solubility in water:

L i O H > N a O H > K O H > R b O H

IV) Melting point:

N a C l > K C l > R b C l > L i C l

A c a l c i n a t i o n - ----- \to C a O + M g O + 2 C O_{2}

Q. Arrange MgO, CaO,Sro and BaO in order of increasing lattice energy.

Q. The decreasing order of basic character of

K_{2} O, B a O, C a O

M g O

is ___________.

Q. The order of decreasing polarity in the compound

C a O, C s F, K C l, M g O

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GEOGRAPHY

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Geo Dynamo and Solar Winds

Standard VIII Geography

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