Home
Class 8
CHEMISTRY
Gas used is welding is...

Gas used is welding is

A

LPG

B

CNG

C

Neutral gas

D

Oxy-acetylene flame

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • COMBUSTION, FUELS AND FLAME

    NCERT TELUGU|Exercise Improve your learning|27 Videos

  • ELECTRICAL CONDUCTIVITY OF LIQUIDS

    NCERT TELUGU|Exercise Think and discuss|3 Videos

Similar Questions

Explore conceptually related problems

Aluminium is stable in air and water inspite of the fact that it is reactive metal. The reason is that a thin film of its oxide, if formed on its surface which makes it passive for further attack. The layer is so useful that in industry, it is purposely deposited by an electrolytric process called anodizing. Reaction of aluminium with oxygen is highyl exothermic and is called thermite reaction 2Al(s)+(3)/(2)O_(2)(g)rarr Al_(2)O_(3)(s), Delta H=-1670 kJ Thermite reaction finds applications in the metallurgical extraction of many metals from their oxides and for welding of metals. The drawback is that to start the reaction, high temperature is required for which an ignition mixture is used. Thermite mixture used for welding is

Why is dihydrogen used in welding of high melting metals ?

Gas used in refrigirators is

A welding fuel gas contains carbon and hydrogen only. Burning a small sample of it in oxygen gives 3.38 g carbon dioxide, 0.690 g of water and no other products. A volume of 10.0 L (measured at STP) of this welding gas is found to weigh 11.6 g. Calculate (i) empirical formula, (ii) molar mass of the gas, and (iii) molecular formula.

(A) Aluminium metal is used as a reducing agent in thermite welding (R) Al has a lower melting point than Fe, Cr and Mn.

Gas that is used in preparing flash bulbs is

Plants use this gas during respiration

A laser used to weld detached retains emits light with a wavelength 652 nm in pulses that are of 20ms duration. The average power during each pulse is 0.6W. The energy in each pulse and in a single photon are

Which of the following process used in water gas shift reaction

NCERT TELUGU-COMBUSTION: FUELS AND FLAME-EXERCISE
  1. Write an activity to prove that oxygen helps in burning.

    Text Solution

    |

  2. "Is combustion possible without the supply of oxygen? Discuss with you...

    Text Solution

    |

  3. Explain giving reasons: In which of the following situations water wil...

    Text Solution

    |

  4. List the ways adopted by fire fighters to combat fires.

    Text Solution

    |

  5. Draw the diagram of candle flame and label all the zones.

    Text Solution

    |

  6. Which one of the following is non combustible

    Text Solution

    |

  7. Name the fuel that is commonly used by most of the people

    Text Solution

    |

  8. Which of the following is used as a rocket fuel?

    Text Solution

    |

  9. The substance that catches fire at room temperature by heat

    Text Solution

    |

  10. Can we separate alcohol dissolved in water by using a separating funne...

    Text Solution

    |

  11. Which one of the following is suggested for vehicles,.

    Text Solution

    |

  12. Removing the unburnt materials from a heap of paper which caught fire

    Text Solution

    |

  13. Electrical fires can be controlled by

    Text Solution

    |

  14. Gas used is welding is

    Text Solution

    |

  15. Which zone of the flame is brightest

    Text Solution

    |

  16. FILL IN THE BLANKS : gas is liberated when improper combustion takes ...

    Text Solution

    |

  17. FILL IN THE BLANKS : Gaseous fuels have Value.

    Text Solution

    |

  18. FILL IN THE BLANKS : is used to control the burning of wood or paper.

    Text Solution

    |

  19. FILL IN THE BLANKS : gold smiths usezone of flame.

    Text Solution

    |

  20. FILL IN THE BLANKS : is a non supporter of combustion.

    Text Solution

    |