True False[1 Marks ]

Question 11 Mark

In acidic medium 1 mole of $H _2 S$ react with $2 / 5$ moles of $KMnO _4$.

Answer

True

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Question 21 Mark

Sodium do not react with water at normal temperature.

Answer

False

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Question 31 Mark

In bleaching action of chlorine, $Cl ^{-}$ion oxidises the colour.

Answer

False

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Question 41 Mark

In the electrochemical cell formed by $Zn \mid Zn ^{+2} \|$ $Ag ^{+} \mid Ag$, the flow of electricity is from silver electrode to zinc electrode.

Answer

True

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Question 51 Mark

$CH _3 COOK$ is used to make salt bridge in Daniel cell.

Answer

False

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Question 61 Mark

The O.N. of carbon in diamond is zero.

Answer

True

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Question 71 Mark

When Cu is added in $ZnSO _4$ solution, the colour of solution get blue.

Answer

False

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Question 81 Mark

The anode is negatively charged in Galvanic cell.

Answer

True

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Question 91 Mark

The formation of CaO and $CO _2$ from limestone is a decomposition process.

Answer

True

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Question 101 Mark

In $CrO _5$ the oxidation number of chromium is +10 .

Answer

False

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Chemistry True False[1 Marks ]

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