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Of three metals X, Y and Z. X reacts wit...

Of three metals X, Y and Z. X reacts with cold water, Y with hot water and Z with steam only. Identify X,Y and Z and also arrange them in the order of increasing reactivity.

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X: Na/K,Y:Ca,Z:Al/Fe/Zn, order of reactivity `ZltYltX`
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ZEN PUBLICATION-METALS AND NON METALS-ZEN ADDITIONAL QUESTIONS SECTION (SHORT ANSWER [SA] TYPE 1 QUESTIONS)
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  4. Distinguish between calcination and roasting.

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  7. Of three metals X, Y and Z. X reacts with cold water, Y with hot water...

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  9. A metal that exists as a liquid at room temperature is obtained by hea...

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  11. Give reason a. Platinum, gold and silver are used to make jewellery....

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  12. Write one example for each: a. A metal which is so soft that, it can...

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  13. Name the following : (i) Metal, which is preserved in kerosene. (i...

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  14. Name a metal/non-metal : (i) Which makes iron hard and strong ? (i...

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  15. Write chemical equations that show aluminium oxide reacts with acid as...

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  16. When a metal X is treated with cold watr, it gives a base Y with molec...

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  17. Which of the following metals can displace zinc from its salt solutio...

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