Ram was having a gold coin. He dropped it in the beaker containing sulphuric acid. What will happen?

Gold will be dissolved completely in the sulphuric acid.

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There will be tiny holes in the coin.

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There will be no reaction

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Gold react with sulphuric acid to form another compound

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Solution

The correct option is C
There will be no reaction

Gold is below hydrogen in the reactivity series of metal and hence is considered unreactive. So gold will not be able to replace hydrogen from the sulphuric acid.

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49 g of sulphuric acid are dissolved in 250 ml of the solution. Its molarity will be

Q. Concentrated sulphuric acid can dissolve gold.

Q. A container contains 10 litres mixture in which there is 10% sulphuric acid. How much sulphuric acid is to be added to make the solution to contain 25% sulphuric acid?

Give reasons for the following:
(i) In the contact process, sulphur trioxide formed is dissolved in 98% sulphuric acid and not in water.
(ii) When solution of sulphur dioxide is exposed to air, it gets converted to sulphuric acid.
(iii) When diluting concentrated sulphuric acid, the acid should be added to water and not water to the acid.
(iv) When concentrated sulphuric acid is exposed to air, its volume increases and it becomes slightly dilute.
(v) Sulphuric acid can form two kinds of salts with sodium chloride.
(vi) When barium chloride is added to dilute sulphuric acid, a white precipitate is formed.
(vii) When carbon is heated with concentrated sulphuric acid, carbon dioxide is formed.
(viii) Ammonia gas cannot be dried by passing through concentrated sulphuric acid.
(ix) When concentrated sulphuric acid is added to sugar/glucose, a black mass is left behind.
(x) Concentrated sulphuric acid should not be added to oxalic acid or formic acid in the open laboratory.
(xi) When concentrated sulphuric acid is added to blue crystalline copper sulphate, it turns powdery white.
(xii) Concentrated sulphuric acid must be stored in airtight bottles.
(xiii) Cotton clothes get burnt with concentrated sulphuric acid.
(xiv) H₂SO₄ cannot be prepared by heating sodium sulphate with conc. HCl or HNO₃.

Q. If M is a reactive metal, then .................. will be evolved, when M reacts with dilute sulphuric acid.

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Ram was having a gold coin. He dropped it in the beaker containing sulphuric acid. What will happen?

The correct option is C There will be no reactionGold is below hydrogen in the reactivity series of metal and hence is considered unreactive. So gold will not be able to replace hydrogen from the sulphuric acid.

The correct option is C
There will be no reaction

Gold is below hydrogen in the reactivity series of metal and hence is considered unreactive. So gold will not be able to replace hydrogen from the sulphuric acid.