Home
Class 10
CHEMISTRY
When a metal X is treated with cold watr...

When a metal X is treated with cold watr, it gives a base Y with molecular formula XOH (molecular mass 40) and liberates a gas Z which easily catches fire. Identify X, Y and Z

Text Solution

Verified by Experts

`underset(X)(2Na)+2H_(2)Otounderset(Y)(2NaOH)+underset(Z)(H_(2)(g))`
X is sodium
Y is sodium hydroxide
Z is hydrogen gas.
Promotional Banner

Topper's Solved these Questions

  • METALS AND NON METALS

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SECTION (SHORT ANSWER TYPE 2 QUESTIONS)|30 Videos

  • 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 (VERY SHORT ANSWER [VSA] TYPE QUESTIONS)|34 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

Match the following if molecular masses of X, Y, Z are same

In one of the industrial processes used for manufacture of sodium hydroxide, a gas X is formed as byproduct. The gas X reacts with lime water to give a compound Y which is used as a bleaching agent in chemical industry. Identify X and Y giving the chemical equation of the reactions involved.

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.

An organic acid 'X' is a liquid which often freezes during winter time in cold countries. It has molecular formula C_(2)H_(4)O_(2) . On warming with ethanol in the presence of a few drops of conc. H_(2)SO_(4) a compound Y with a sweet smell is formed. (i) Identify 'X' and 'Y'. (ii) Write chemical equations for the reactions involved.

Some bacteria such as 'X' and 'Y' occur in soil which reduce nitrate to nitrogen by the process of 'Z' Identify 'X', 'Y' and 'Z'

A non-metal X exists in two different forms Y and Z. Y is the hardest natural substance, where as Z is a good conductor of electricity. Identify X, Y and Z.

A metal carbonate X on reacting with an acid gives a gas which when passed through a solution Y gives the carbonate back. On the other hand, a gas G that is obtained at anode during electrolysis of brine is passed on dry Y, gives a compound Z, Z is used for disinfecting drinking water. Identify X, Y, G and Z.

ZEN PUBLICATION-METALS AND NON METALS-ZEN ADDITIONAL QUESTIONS SECTION (SHORT ANSWER [SA] TYPE 1 QUESTIONS)
  1. Explain the following: a. Reactivity of Al decreases if it is dipped...

    Text Solution

    |

  2. In joining railway tracks or cracked machine parts, reaction of Fe(2)O...

    Text Solution

    |

  3. What is cinnbar ? How is a metal extracted from cinnabar ? Explain bri...

    Text Solution

    |

  4. Distinguish between calcination and roasting.

    Text Solution

    |

  5. Write composition of the following alloys:

    Text Solution

    |

  6. Two metals P and Q react with oxygen to form their respective oxides w...

    Text Solution

    |

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

    Text Solution

    |

  8. The atomic number of two elements A and B are 8 and 12. Write the sym...

    Text Solution

    |

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

    Text Solution

    |

  10. Give the reaction involved during the extraction of zinc from its ore ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  18. Mention the names of the metals for the following: a.two mtals which...

    Text Solution

    |

  19. What are the constituents of solder alloy ? Which property of solder m...

    Text Solution

    |

  20. Explain how the properties of an alloy are different from those of con...

    Text Solution

    |