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Why does copper obtained in the extraction from copper pyrites have a blistered appearance?
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Although chlorine is an electron withdrawing group, yet it is ortho-, para- directing in electrophilic aromatic substitution reactions. Why?
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What is 'copper matte' ?
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Which of the following is a more stable complex and why ?
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Write the reaction that occurs at anode on electrolysis of concentrated 2 4 H SO using platinum electrodes.
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How will you convert the following:
[Ag(CN)2]− to Ag
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Electrochemistry deals with the production of electricity from ____________.
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The substance that gets adsorbed on the surface of the solid is called ____________.
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Water vapours are adsorbed by:
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Adsorption is accompanied by:
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The phenomenon in which adsorption and absorption take place simultaneously is called ____________.
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Metals which occur in their native state in nature:
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Metal which is found in free state is:
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Which among the following statement is correct?
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The most abundant metal on earth is:
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The sulphide ore of iron is ____________.
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Carbonate ore of iron is ____________.
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The existence of a substance in more than one solid modifications is known as ____________.
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Which of the following is not a characteristic property of solids?
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Which of the following is not a characteristic of a crystalline solid?
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