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(1) Give reasons:- [5]
(i) Electrovalent or ionic compounds are good conductor of electricity.
(ii) Slaked lime or baking soda applied over bee sting.
(iii) Chlorine 35 and chlorine 37 have same chemical properties.
(iv) Fused calcium chloride or concentrated sulphuric acid is used in desiccator.
(v) Noble gases exist as monoatomic molecules.
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(i)Ionic compounds conduct electricity in molten state. Conductivity depends on presence of no. of mobile ions which consist of electron where solid ionic compounds cannot conduct electricity because of the absence no mobile ions (consist of electrons) in the crystal lattice.
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