Borax bead test is not given by :...

Borax bead test is not given by :

A

An aluminium salt

B

A cobalt salt

C

A copper salt

D

A nickel salt

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The correct Answer is:

A

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In alumino-thermy, aluminium is heated with :
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Potash alum is water soluble and ionises in aqueous solution to give :
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Borax bead test is not given by :
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Which is not correct ?
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The molecules of aluminium chloride in vapour state :
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The main factor responsible for weak acidic nature of B-F bonds in BF3...
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Which is pure basic oxide ?
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Oxides of group 13 elements are:
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Which of the following cannot liberate H2 with acids ?
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Which of the following shows variable valency ?
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Melting point is highest for:
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Pure H2S gas can be obtained by the action of water on :
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Orthoboric acid when heated to red hot gives :
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Boron was isolated by :
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Boron differs from the other members of group 13 because it :
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Boron compounds behave as Lewis acids because of their :
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Which is amphoteric compound ?
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Which does not react with water ?
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The precious stone aquamarine is :
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Which is amphoteric ?
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