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Which of the following is least ionic:
(1) C2, H5 Cl
(2) KCl
(3) BaCl2
(4) C6 H5 + H3 Cl-
Ans: C2, H5 Cl
Why do zinc hydroxide, aluminium hydroxide and lead (II) hydroxide dissolve in excess aqueous sodium hydroxide?
ENTHALPY
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How do impurities and temperature affect electrical resistivity of metals? Ans: Temperature effect on resistivity: Any increase in temperature of a conductor increase
excited state for sodium
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Identify the formula and melting point of hydrate? Iron (III) chloride forms various solid hydrates, all of which melt congruently. Table lists the temperatures t of aqueous so
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