Which metal powder if spread in air, bec...

Which metal powder if spread in air, becomes hazardous?

A

B

B

Al

C

Ca

D

K

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The correct Answer is:

B

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Alum is used by dyer of cloth :
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Stable compounds in +1 oxidation state ore formed by :
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Which metal powder if spread in air, becomes hazardous?
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In the aluminothermic process, aluminium acts as:
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Chemically borax is :
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Chief ore of Al is :
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Alum is not used :
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Aluminium is obtained by :
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The cryolite is :
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The dissolution of Al(OH)3 by a solution of NaOH results in the format...
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Which mixed sulpate is not an alum ?
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Which of the following exists as a dimer ?
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Duralumin is an alloy of :
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The alloy used in preparation of balance beam and light instruments:
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Which of the following is pseudo alum :
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Aluminium does not react with :
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Which of the following statements about anhydrous aluminium chloride i...
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Colemanite is a mineral of :
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Which does not exist ?
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Borax is prepared by treating colemanite with :
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