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MBD PUBLICATION-TRANSITION METALS (d-BLOCK ELEMENTS)-QUESTION BANK
- In the electrorefining of copper, some gold is deposited as :
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- Auric chloride on reaction with ferrous sulphate changes to :
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- Gun metal is an alloy of
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- Bell metal is an alloy of :
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- An aqueous solution of CuSO4 turns blue litmus to :
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- A blue colouration is not obtained when :
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- Silver is extracted from argentiferous lead by :
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- Copper can be extracted from :
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- The blue complex ion formad on addition of conc. NH4OH solution to a C...
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- Blister copper is
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- Silver nitrate produces a black stain on skin due to :
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- Cuprous chloride is obtained from cupric chloride :
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- From sodium argentocyanide Na[Ag(CN)2], silver is precipitated by addi...
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- German Silver is an alloy of Copper and:
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- Silver nitrate solution gives a red precipitate with :
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- Percentage of gold in 20 carat gold is :
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- Lunar caustic is chemically:
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- The action of HCI on silver nitrate produces:
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- Which one is least soluble in water:
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- A reaction between copper and hot concntratd sulphuric acid produces :
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