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What is 24-carat gold? How will you conv...

What is 24-carat gold? How will you convert it into 18-carat gold?

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### Step-by-Step Solution: 1. **Understanding Karat**: - Karat is a unit that measures the purity of gold. - 24-carat gold is considered to be 100% pure gold, meaning it contains no other metals or impurities. 2. **Characteristics of 24-Carat Gold**: - 24-carat gold is bright yellow in color and is very soft, making it less durable for everyday use. ...
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VK GLOBAL PUBLICATION-METALS AND NON-METALS-SHORT ANSWER QUESTION-I
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  2. Name one metal and one non-met-al that exist in liquid state at room t...

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  3. A zinc plate was kept in a glass container having copper sulphate solu...

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  4. Generally, when metals are treated with mineral acids, hydrogen gas is...

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  5. Give reasons for the following : Metals replace hydrogen from dilute...

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  6. What happens when iron nail is placed in silver nitrate solution? ...

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  7. Why do metals not evolve hydrogen gas with nitric acid?

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  8. Name a metal from each case: It does not react with cold as well as ...

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  9. Which of the following reactions will not occur? Give reasons. MgSO4...

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  10. List any two observations when a highly reactive metal is dropped in w...

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  11. State the reason for the following behaviour of zinc metal: On placi...

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  12. An ore gives carbon dioxide on treatment with a dilute acid. What step...

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  13. The following reaction takes place when aluminium powder is heated wit...

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  14. What is a thermite reaction? Explain with the help of an equation.stat...

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  15. Why should the metal sulphides and carbonates be converted to metal ox...

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  16. What is 24-carat gold? How will you convert it into 18-carat gold?

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  17. What would happen to iron railings on the road side if they are not pa...

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  18. Explain why, the galvanised iron article is protected against rusting ...

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  19. Why is aluminium oxide considered an amphoteric oxide?

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  20. Why are food cans tins plated instead of zinc plated through zinc is c...

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