Home
Class 10
CHEMISTRY
A metal is slowly eaten away in the pres...

A metal is slowly eaten away in the presence of air and water. To avoid this, the metal is mixed with carbon, choromium, and nickel.
a. Identify the metal.
b. What is the substance formed on mixed with carbon?
c. State another method that can be used to protect the metal.

Text Solution

Verified by Experts

a. Iron. B. Steel. C. By painting/galvanizing.
Promotional Banner

Topper's Solved these Questions

  • METALS AND NON METALS

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SECTION (LONG ANSWER [LA] TYPE 2 QUESTIONS)|14 Videos

  • METALS AND NON METALS

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SECTION (SHORT ANSWER [SA] TYPE 1 QUESTIONS)|28 Videos

  • CHEMICAL REACTIONS AND EQUATIONS

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SECTION (LONG - ANSWER [LA]TYPE QUESTIONS )|27 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS

    ZEN PUBLICATION|Exercise QUESTIONS|2 Videos

Similar Questions

Explore conceptually related problems

b) How is a metal-carbon pi bond formed in metal carbonyls?

A metal X is used extensively in making aeroplane bodies as it is light in weight it is also used in extraction of metals by displacement reaction. The metal obtained during one such displacement is a molten metal as the reaction involved is hightly exothermic. The reaction mentioned above is used in joining railway tracks. a. Identify the metal X. b. What is the reaction mentioned above called? c.Write the chemical reaction for the above reaction.

In a thermite reaction, a compound of iron reacts with a metal : (i) Name the metal used in this reaction. (ii) After completion of this reaction, a metal is obtained in the molten state. Identify the metal. (iii) Represent this reaction in the form of a balanced chemical equation. (iv) Mention the most common use of this reaction.

Carbon cannot be used to reduce the oxide of sodium, magnetsium, calcium, etc.to their respective metals. State the method used for obtaining these metals from their salts. For obtaining sodium from its compound. a. Name the salt used, gas produced, and the electrode at which the metal deposits. b. Show the chemical reaction taking place during the process. c. Name any two other metals which can be obtained from its compounds by the above method.

In the following chemical reaction, ''zinc oxide reacts with carbon to produce zinc metal and carbon monoxide.'' ZnO+C to Zn+CO (a) Identify the substance getting oxidized and the one getting reduced. (b) State the reason for choosing the substances in (a). (c) Name the type of reaction and give another example of similar type of reaction.

A metal X is stored under kerosene. When a small piece of it is left open in the air, it catches fire. When the product formed is dissolved in water it turns red litmus blue. a. Name the metal X. b. Write the chemical equation for the rection when it is exposed to air and when the product is dissoolved in water. c. Explain the process by which the metal is obtaned from its molten chloride.

Give reasons for the following: a. Ionic compounds in general have high melting and boiling points. b. Highly reactive metals cannot be obained from their oxides by heating them with carbon. c. Copper vessel get a green coat when left exposed to air in the rainy season.

Give Reason: a. Prior to reduction of the metal, sulphides and metal carbonates must be converted into metal oxides. b. for extracting some metals, displacement reactions are used instead of carbon to obtain metals from their oxides.

In the following chemical reaction ''zinc oxide reacts with carbon to produce zinc metal and carbon monoxide.'' ZnO+CrarrZn+CO (i) Identify the substance getting oxidised and the one getting reduced. (ii) State the reason for choosing the substances in (i) . (iii) Name the type of reaction and give another example of similar type of reaction .

Give reasons: a. Platinum, gold, and silver are used to make jewellery. b. Sodium, potassium, and lithium ar stored under oil. c. Aluminilum is a higly reactive metal, yet it is used to make utensils for cooking. d. Carbonate and sulphate ores are usually converted into oxides during metal extraction.

ZEN PUBLICATION-METALS AND NON METALS-ZEN ADDITIONAL QUESTIONS SECTION (SHORT ANSWER TYPE 2 QUESTIONS)
  1. A metal X is used extensively in making aeroplane bodies as it is ligh...

    Text Solution

    |

  2. During extraction of metals, electrolytic refining is used to obtain p...

    Text Solution

    |

  3. Match the method of extraction with the metals.

    Text Solution

    |

  4. How is impure copper purified by electrolytic refining? Draw a neat la...

    Text Solution

    |

  5. Tabulate the changes and compounds formed when Ag, Cu, and Fe articles...

    Text Solution

    |

  6. Define the term alloy. Write two advantages of making alloys.

    Text Solution

    |

  7. A metal is slowly eaten away in the presence of air and water. To avoi...

    Text Solution

    |

  8. Two elements X and Y have atomic number 3 and 5 respectively, give the...

    Text Solution

    |

  9. Explain the reactions of different metals with lot water, cold water a...

    Text Solution

    |

  10. State the property utilized in the following : (i) Graphite is makin...

    Text Solution

    |

  11. (i) Write any two properties of ionic compound. (ii) Show the format...

    Text Solution

    |

  12. P,Q and R are 3 elements which undergo chemical reactions according to...

    Text Solution

    |

  13. Account for the following: (i) Electrical wire are coated with plast...

    Text Solution

    |

  14. Explain the structure of mature female gametophyte with the help of a ...

    Text Solution

    |

  15. State three reasons for the following facts: a. Sulphur is a non met...

    Text Solution

    |

  16. Write balanced chemical equations for the following reactions : (i)...

    Text Solution

    |

  17. a. Write the electronic dot structure of K and Cl. b Show the format...

    Text Solution

    |

  18. Give reasons for the following: a. Ionic compounds in general have h...

    Text Solution

    |

  19. Write one example of each of the following : (i) Most malleable meta...

    Text Solution

    |

  20. Draw the diagram of the arrangement of apparatus to show the action of...

    Text Solution

    |