Tag: practical work

Multiple choice distinguish between black copper oxide and black manganese dioxide practical work chemistry

On adding $NH _4OH$ to $MnCl _2$, the precipitate formed is :

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Multiple choice distinguish between black copper oxide and black manganese dioxide practical work chemistry

Which acid will react poorly with copper oxide?

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Multiple choice distinguish between black copper oxide and black manganese dioxide practical work chemistry

Copper oxide is a:

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Multiple choice distinguish between black copper oxide and black manganese dioxide practical work chemistry

The gases evolved on the reaction of manganese dioxide with $HCl$ is/are:

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Multiple choice distinguish between black copper oxide and black manganese dioxide practical work chemistry

Which one is the correct option for the solubility of $CuCl _2$ in water?

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Multiple choice distinguish between black copper oxide and black manganese dioxide practical work chemistry

Number of moles of $HCl$ requied to test one mole of copper oxide is:

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Multiple choice distinguish between black copper oxide and black manganese dioxide practical work chemistry

Number of moles of $HCl$ requied to test one mole of manganese dioxide is:

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Multiple choice distinguish between black copper oxide and black manganese dioxide practical work chemistry

Number of gaseous products that manganese dioxide forms on reaction with $HCl$ is:

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Multiple choice distinguish between black copper oxide and black manganese dioxide practical work chemistry

Which of the following will produce a gas with bleaching property on reaction with hydrochloric acid?

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Multiple choice distinguish between black copper oxide and black manganese dioxide practical work chemistry

The gases evolved on the reaction of copper oxide with $HCl$ is/are:

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