Q. AlF₃ is a purely ionic halide having melting point

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Q. Periodicity is the gradual change in the properties of elements when they are arranged according to their ascending order of

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Q. Trend of electric conductance for group I-A and II-A in a group is

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Q. An anion is formed when an atom

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Q. 419 KJ/mol is the ionization energy value for the atom

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Q. Inert gases have maximum ionization energy value because of

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Q. Cationic radius is the radius of

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Q. The radius of a negative ion is called

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Q. The main properties of non-metals are

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Q. Elements of group IIA form ionic halides with halogens except

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Q. Polymeric halides are formed by

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Q. Acid-base character of oxides depends upon the metal

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Q. The amount of energy released or absorbed when an electron is added to an atom to form negative ion is called

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Q. Among the ionic halides, following has the highest lattice energy

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Q. There are types of oxides

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Q. Ionization energy increases from left to right in the period due to

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Q. Most stable hydrides are of

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Q. Second ionization energy value of sodium is

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Q. The compound with the ionic nature is

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Q. The value of hydration energy for hydrogen ion is

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