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प्रश्न
Give reactions for the following:
O – O single bond is weaker than S – S single bond.
उत्तर
Due to smaller size of ‘O’ as compared to ‘S’. Smaller size of O leads to smaller O–O bond length. As a result, the lone pair of electrons on the both O atoms repel each other leading to instability or weakening of O–O bond. S is relatively larger so an repulsion between lone pair electrons.
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संबंधित प्रश्न
a. Explain the trends in the following properties with reference to group 16:
1 Atomic radii and ionic radii
2 Density
3 ionisation enthalpy
4 Electronegativity
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Zn, Ti, Pt, Fe
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Given below are two statements labelled as Assertion (A) and Reason (R).
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Reason (R): Ionisation enthalpies of the elements follow the order Nitrogen > Oxygen > Fluorine.
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