The salt solution which does not react with ammonium hydroxide is:
Calcium Nitrate
Zinc Nitrate
Lead Nitrate
Copper Nitrate
D.
Copper Nitrate
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Ionic or electrovalent compounds do not conduct electricity in their _______ state. (fused/solid)
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Dry hydrogen chloride gas can be collected by ________ displacement of air. (downward / upward)
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Electrolysis of aqueous sodium chloride solution will form ________ at the cathode. (Hydrogen gas / Sodium metal)
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The most common ore of iron is ________. (Calcium / Haematite)
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The salt prepared by the method of direct combination is _______. (iron (II) chloride / iron (III) chloride)