Phosphine prepared by the action of caus...

Phosphine prepared by the action of caustic soda on white phophorus is highly inflammable because it contains small amounts of :

hydrogen

vapour of white phosphorus

vapour of phosphorus trioxide

Phosphorus dihydride.

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MODERN PUBLICATION-CHEMISTRY OF P - BLOCK ELEMENTS-Multiple Choice Questions (Level - II) (Comprehensive Qs)

Which of the following is the hardest compound of boron?
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Nitrogen can be purified from the impurities of oxides of nitrogen and...
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Phosphine prepared by the action of caustic soda on white phophorus is...
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A gas that cannot be collected over water is :
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Aluminium (III) chloride forms a dimer because :
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Which element out of the following He, Ar, Kr and Xe forms least numbe...
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The acid which forms two series of salts is :
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The partial hyddrolysis of XeF(4) at low temperature gives :
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Which of the following is not used as a pigment in paints?
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Hydrolysis of one mole of peroxodisulphuric acid produces :
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Basicity of orthophosphoric acid is :
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White phosphorus (P(4)) does not have :
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Which of the following is not correct order of the property mentioned?
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PBr(5) in solid state exists as :
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XeF(4) reacts with water at -80^(@)C to give :
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Which of the following set does not have oxidation state +6 for S?
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Which of the following has highest basicity?
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Which of the following reaction does not produce phosphine?
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The hybridisation of I in IC l(2)^(-),IC l(4)^(-) are respectively:
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IC l(3) conducts electricity because on electrolysis it ionises as :
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