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प्रश्न
Why is white phosphorus kept immersed under water?
उत्तर
White phosphorus is kept immersed in water because it starts burning spontaneously when it comes into contact with air. But it does not react with water.
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संबंधित प्रश्न
Write equations for the reactions of iron with steam.
What will happen if a strip of copper is kept immersed in a solution of silver nitrate (AgNO3)?
What is the nature of the oxide Na2O? What happens when it is dissolved in water? Write the chemical equation of the reaction involved.
What happens when calcium reacts with chlorine? Write an equation for the reaction which takes place
Name one metal which displaces silver from silver nitrate solution and one which does not.
Which non-metal has been placed in the reactivity series of metals?
One of the following is not a neutral oxide. This is:
(a) CO
(b) H2O
(c) N2O
(d) Na2O
The metals which can produce amphoteric oxides are:
(a) sodium and aluminium
(b) zinc and potassium
(c) calcium and sodium
(d) aluminium and zinc
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(a) MgSO4 (aq) + Cu (s) → CuSO4 (aq) + Mg (s)
(b) CuSO4 (aq) + Fe (s) → FeSO4 (aq) + Cu (s)
(c) MgSO4 (aq) + Fe (s) → FeSO4 (aq) + Mg (s)
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