Home
Class 12
CHEMISTRY
Heat treatment alters the properties of ...

Heat treatment alters the properties of steel due to

A

chemical reaction on heating

B

partial rusting

C

change in the residual energy

D

change in the lattice structure due to differential rate of cooling

Text Solution

Verified by Experts

The correct Answer is:
D
Heat treatment alters the properties of steel due to rearrangement of its grain structure.
Promotional Banner

Topper's Solved these Questions

  • KARNATAKA CET 2001

    KCET PREVIOUS YEAR PAPERS|Exercise Chemistry|55 Videos

  • KARNATAKA CET 2003

    KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|60 Videos

Similar Questions

Explore conceptually related problems

Mechanical properties of sclerenchyma is due to

Alloxan treatment destroys

In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self-cells, then it leads to

In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self-cells, then it leads to

Name the major constituent of biogas. Write the properties of biogas which make it a good fuel. ii. Name the two devices that work using heat energy of the sun.

In which of the following equilibrium, change in volume of the system does not alter the number of moles ?

KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2002-CHEMISTRY (MCQ.s)
  1. 30g of magnesium and 30g of oxygen are reacted and the residual mixtur...

    Text Solution

    |

  2. 3g of an oxide of a metal is converted to chloride completely and it y...

    Text Solution

    |

  3. 20ml of 0.25 N strong acid and 30 ml 0.2 N of strong base are mixed, t...

    Text Solution

    |

  4. The ratio of the forward reaction is two times that of the revers reac...

    Text Solution

    |

  5. A chemical reaction was carried out at 300 K and 280 K. The rate const...

    Text Solution

    |

  6. Ammonium ion is

    Text Solution

    |

  7. Water is a

    Text Solution

    |

  8. A smuggler could not carry gold by depositing iron on gold surface sin...

    Text Solution

    |

  9. A is an aqueous acid, B is an aqueous base. They are diluted separatel...

    Text Solution

    |

  10. ""(Z)X^(M)+""(2)He^(4)to""(15)P^(30)+""(0)n^(1). Then

    Text Solution

    |

  11. Kinetic theory of gases presumes that collision between the molecules ...

    Text Solution

    |

  12. Bio-gas production is more useful when compared to the direct use of ...

    Text Solution

    |

  13. Compounds with high heat of formation are less stable because

    Text Solution

    |

  14. In the case of a radio isotope the value of T(1//2) and lamda are iden...

    Text Solution

    |

  15. Heat of neutralisation of weak acid and strong base is less than the h...

    Text Solution

    |

  16. A radio isotope will not emit

    Text Solution

    |

  17. Heat treatment alters the properties of steel due to

    Text Solution

    |

  18. Chemical bond implies

    Text Solution

    |

  19. Grignard reagent is not prepared in aqueous medium but prepared in eth...

    Text Solution

    |

  20. A lone pair of electrons in an atom implies

    Text Solution

    |