Home
Class 12
CHEMISTRY
(A): In aluminothermic process, Al reduc...

(A): In aluminothermic process, Al reduction increases the heat of the reaction
(R): During reduction in thermit process, `Al_2 O_5` is formed which is an exothermic product.

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

Both (A) and (R) are false

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PRINCIPLES OF METALLURGY

    AAKASH SERIES|Exercise PROBLEMS|38 Videos
  • PRINCIPLES OF METALLURGY

    AAKASH SERIES|Exercise SUBJECTIVE EXERCISE-2 ( SHORT ANSWER QUESTIONS )|8 Videos
  • PRINCIPLES OF METALLURGY

    AAKASH SERIES|Exercise Objective Exercise-3 (Previous NEET/AIPMT Questions)|14 Videos
  • PRACTICAL CHEMISTRY

    AAKASH SERIES|Exercise PRACTICE SHEET-5 (Integer answer Type questions)|6 Videos
  • PROTEINS AND NUCLEIC ACIDS

    AAKASH SERIES|Exercise PRACTICE SHEET - 4|30 Videos

Similar Questions

Explore conceptually related problems

In the preparation of H_(2) SO_(4), by Constact process V _(2) O_(5) is used as a catalyst in the reaction.

In Boschis process which als fised for the production of hydrogen

(A) : In isobaric process, during an expansion of a gas both volume and temperature of the gas increase (R ): Heat added to a gas partly gets converted into internal energy and remaining to do external work

During reduction of aldehydes with hydrazine and C_(2)H_(5)Ona the product formed is

Carbon cannot be used in the reduction of Al_2 O_3 because

The chief product of electrolysis of Al_(2)O_(3) at the anode in the Hall's process is

Al_(2)O_(3) formation involves large quantity of heat evolution which makes its use in

A gas underoes change from state A to state B . In this process , the heat absorbed and work done by the gas is 5 J and 8J respectively . Now gas is brought back to A by another process during which 3 J of heat is evolved . In this reverse process of B to A

AAKASH SERIES-PRINCIPLES OF METALLURGY-Objective exercise -4 (Assertion (A) & Reason (R) type questions :
  1. (A) Cassiterite mineral is concentrated by electromagnetic method ...

    Text Solution

    |

  2. (A) Leaching is chemical method used to ore benefication process (R...

    Text Solution

    |

  3. (A): In aluminothermic process, Al reduction increases the heat of the...

    Text Solution

    |

  4. (A) : Sulphide ores are concentrated by froth floatation process. (R...

    Text Solution

    |

  5. (A): Platinum and gold occur in native state in nature. (R): Platinu...

    Text Solution

    |

  6. (A) Levigation is used for the separation of oxide ores from impuriti...

    Text Solution

    |

  7. (A) Calamine is a mineral of calcium (R) Calamine is chemically a s...

    Text Solution

    |

  8. Carnallite is an example of

    Text Solution

    |

  9. (A) Froath floatation process involves adsorption (R) Pure ore is p...

    Text Solution

    |

  10. (A) Wolframite impurities are separated from cassiterite by electrom...

    Text Solution

    |

  11. (A) In smelting, roasted ore is heated with powdered coke in presenc...

    Text Solution

    |

  12. (A) Leaching is the process of converting the ore into oxide and the...

    Text Solution

    |

  13. (A) Aluminium metal is used as a reducing agent in thermite welding ...

    Text Solution

    |

  14. (A) Lead, tin and bismuth are purified by liquation method . (R) Lead...

    Text Solution

    |

  15. (A) Pin oil is fused as a foaming agent in froth floatation process ...

    Text Solution

    |

  16. (A) Aluminium metal can be extracted by the electrolysis of aqueous al...

    Text Solution

    |

  17. (A) Magnesium can not be extracted by electrolysis of aqueous salt s...

    Text Solution

    |

  18. (A) Iron metal is refined in blast furnace (R) Blast furnace is used...

    Text Solution

    |

  19. (A) Van Arkel method is a vapour phase refining process (R) Vapours...

    Text Solution

    |

  20. (A) For iron extraction usually Fe(2) O(3) is used but not FeS(2) ...

    Text Solution

    |