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Question
Give balanced equation for the following conversion:
Zinc to sodium zincate – using an alkali.
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Solution
Zinc to sodium zincate.
\[\ce{Zn + 2NaOH ->\underset{\text{Sodium Zincate}}{Na2ZnO2} + H2}\]
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Indicate which of the following statement is true and which is false:
Nitric acid cannot be used to prepare hydrogen by its action on active metals.
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A metal which liberates hydrogen only when steam is passed over red hot metal.
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FILL IN THE BLANK
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The element which forms a diatomic molecule.
The diagram represent the preparation and collection of hydrogen by a standard
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The diagram represent the preparation and collection of hydrogen by a standard laboratory method.

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