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An element reacts with oxygen to give a ...

An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be
(a) calcium
(b) carbon
(c) silicon
(d) iron

A

calcium

B

carbon

C

silicon

D

iron

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AI Generated Solution

To solve the question, we need to analyze the properties of the compounds formed by each of the given elements when they react with oxygen. ### Step-by-Step Solution: 1. **Identify the Compounds Formed**: - **Calcium (Ca)** reacts with oxygen to form **Calcium Oxide (CaO)**. - **Carbon (C)** reacts with oxygen to form **Carbon Dioxide (CO₂)**. - **Silicon (Si)** reacts with oxygen to form **Silicon Dioxide (SiO₂)**. ...
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NCERT ENGLISH-METALS AND NON-METALS-Exercise
  1. What chemical process is used for obtaining a metal from its oxide?

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  2. Metallic oxides of zinc, magnesium and copper were heated with the fol...

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  3. Which metals do not corrode easily?

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  4. What are alloys?

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  5. Which of the following pairs will give displacement reactions? (i) NaC...

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  6. Which of the following methods is suitable for preventing an iron fryi...

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  7. An element reacts with oxygen to give a compound with a high melting p...

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  8. Food cans are coated with tin and not with zinc because (a) zinc is ...

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  9. You are given a hammer, a battery, a bulb, wires and a switch. (a) H...

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  10. What are amphoteric oxides? Give two examples of amphoteric oxides.

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  11. Name two metals which will displace hydrogen from dilute acids, and tw...

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  12. In the electrolytic refining of a metal M, what would you take as the ...

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  13. Pratyush took sulphur powder on a spatula and heated it. He collected ...

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  14. State two ways to prevent the rusting of iron.

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  15. What type of oxides is formed when non-metals combine with oxygen?

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  16. Give reasons (a) Platinum, gold and silver are used to make jeweller...

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  17. You must have seen tarnished copper vessels being cleaned with lemon o...

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  18. Differentiate between metal and non-metal on the basis of their chemic...

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  19. A man went door to door posing as a goldsmith. He promised to bring ba...

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  20. Give reasons why copper is used to make hot water tanks and not steel ...

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