Home
Class 12
CHEMISTRY
Statement-1:Magnesia and quick lime are ...

Statement-1:Magnesia and quick lime are used as basic flux.
Statement-2:MgO and CaO can withstand very high temperatures.

A

S-I and S-II are true and S-II explains S-I

B

S-I and S-II are true and S-II does not explains S-I

C

S-I is true S-II is false

D

S-I is false S-II is true

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • METALLURGY

    NARAYNA|Exercise EXERCISE - 4 (MATCHING TYPE)|5 Videos
  • HALOGEN COMPOUNDS

    NARAYNA|Exercise Passage 13|1 Videos
  • METTALURGY

    NARAYNA|Exercise Statement Typer Question|2 Videos

Similar Questions

Explore conceptually related problems

Statement-1: Peroxo mono sulphuric acid has low basicity. Statement-2: It has one O-O bond.

Statement-1: Fahrenheit is the smallest unit measuring temperature Statement-2: Fahrenheit was the first temperature scale used for measuring temperature

Statement-1. Less is the critical temperature of a gas, more easily it can be liquefied. Statement-2. Critical temperature is the temperature above which a gas cannot be liquiefied applying any amount of pressure.

Statement-1 : Nitrates are not wide spread in the earth's crust. Statement-2 : Nitrate are all very soluble in water.

Statement-1 : Many endothermic reactions that are not spontaneous at room temperature become spontaneous at high temperatures. Statement-2: Energy of the system increases with increase in temperature.

Statement-1 : At low pressure and high temperature real gas approaches the ideal gas behaviour. and Statement-2 : At low prossure and high temperature the molecules are negligible.

Statement-1: Be imparts colour to the bunsen flame. Statement-2: Be has very high ionisation energy.

Statement -1: Cyclotron does not accelerate electron. Statement-2: Mass of the electron is very small.

Statement-1: HF is weaker acid than HCl. Statement-2: F^(-) has high hydration energy than Cl^(-)

NARAYNA-METALLURGY-STATEMENT TYPE QUESTOINS
  1. Assertion: All minerals are ore. Reason: Ores are minerals from whic...

    Text Solution

    |

  2. Metals of high purity are obtained by zone refining. Impurities are ...

    Text Solution

    |

  3. (A) Au,Pt,Ag etc are found in free state (R ) The metals which are n...

    Text Solution

    |

  4. (A) Roasting is a process in which the ore is heate in presence of air...

    Text Solution

    |

  5. During the electrolysis of aqueous sodium chloride the cathodic reacti...

    Text Solution

    |

  6. The ore that is concentrated by froth floatation process is

    Text Solution

    |

  7. Assertion: Ag and Au are extracted by leaching the ores with a dilute ...

    Text Solution

    |

  8. (A) Alumina has hgih condutivity (R ) The mixture of alumia and cryo...

    Text Solution

    |

  9. What is the percentage of carbon in pig iron and cast iron ?

    Text Solution

    |

  10. Steel contains more carbon than wrought iron

    Text Solution

    |

  11. Aluminium metal is generally used for the extraction of chromium and m...

    Text Solution

    |

  12. Statement-1:Electrolytic reduction of alumina to aluminium by Hall-Her...

    Text Solution

    |

  13. In Froth floatation process for, pine oil functions oil functions as:

    Text Solution

    |

  14. Silver is refined by cupellation process, the process removes the impu...

    Text Solution

    |

  15. Statement-1:Magnesia and quick lime are used as basic flux. Statemen...

    Text Solution

    |

  16. The ore that is concentrated by froth floatation process is

    Text Solution

    |

  17. Assertion : Nickel can be purified by Mond process. Reason : Ni(CO)(...

    Text Solution

    |

  18. Zinc is used to protect corrosion of iron because

    Text Solution

    |

  19. Cinnabar (HgS) and galena (PbS) on roasting give their respective meta...

    Text Solution

    |

  20. Statement-1: Silicones are used as high class industrial insulators. ...

    Text Solution

    |