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प्रश्न
Beryllium halides are covalent whereas magnesium halides are ionic why?
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उत्तर
Beryllium ion (Be2+) is smaller in size and it is involved in the equal sharing of electrons with halogens to form a covalent bond, whereas magnesium ion (Mg2+) is bigger and is involved in the transfer of electrons to form an ionic bond.
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संबंधित प्रश्न
Discuss the general characteristics and gradation in properties of alkaline earth metals.
Beryllium and magnesium do not give colour to flame whereas other alkaline earth metals do so. Why?
Assertion: BeSO4 is soluble in water while BaSO4 is not
Reason: Hydration energy decreases down the group from Be to Ba and lattice energy remains almost constant.
Discuss briefly the similarities between beryllium and aluminium.
Substantiate Lithium fluoride has the lowest solubility among group one metal fluorides.
Alkaline earth metal (A), belongs to 3rd period reacts with oxygen and nitrogen to form compound (B) and (C) respectively. It undergoes metal displacement reaction with AgNO3 solution to form compound (D). Identify A, B, C and D.
An element of group 2 forms covalent oxide which is amphoteric in nature and dissolves in water to give an amphoteric hydroxide. Identify the element and write chemical reactions of the hydroxide of the element with an alkali and an acid.
Alkaline earth metals show ______.
Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is ______.
MgBr2 and Mgl2 are soluble in acetone because of ______.
