Home
Class 12
CHEMISTRY
Assertion: All minerals are ore. Reaso...

Assertion: All minerals are ore.
Reason: Ores are minerals from which metal can be extracted conveniently and economically.

A

If both (A) and ( R) are correct and ( R) is the correct explanation of (A).

B

If both (A) and ( R) are correct, but ( R) is not the correct explanation of (A).

C

If (A) is correct, but ( R) is incorrect.

D

If (A) is incorrect, but ( R) is correct.

Text Solution

Verified by Experts

The correct Answer is:
D
Correct assertion : All ores are minerals, bt all minerals are not ores.
Promotional Banner

Topper's Solved these Questions

  • GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS

    CENGAGE CHEMISTRY|Exercise Exercise (Integer)|27 Videos

  • GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS

    CENGAGE CHEMISTRY|Exercise Exercise (Fill In The Blanks)|30 Videos

  • GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS

    CENGAGE CHEMISTRY|Exercise Exercise (Single Correcttype)|106 Videos

  • ELECTROCHEMISTRY

    CENGAGE CHEMISTRY|Exercise Archieves Subjective|35 Videos

  • GRIGNARD REAGENTS AND ORGANOMETALLIC REAGENTS

    CENGAGE CHEMISTRY|Exercise Exercises Archives (Linked Comprehension)|1 Videos

Similar Questions

Explore conceptually related problems

(A) All minerals are ores (R ) Ores are minerals from which metal can be extracted convenitly and economically

Minerals from which metals are extracted conveniently and economically are called ____.

The mineral from which a metal can be extracted profitably is called ______.

CENGAGE CHEMISTRY-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-Exercise (Assertion-Reasoning)
  1. Assertion: All minerals are ore. Reason: Ores are minerals from whic...

    Text Solution

    |

  2. Argentite ore is concentrated by froth flotation process. Argentite ...

    Text Solution

    |

  3. All metals cannot be obtained by carbon reduction. Carbon is a very ...

    Text Solution

    |

  4. Assertion: Durig calcination the ore is heated well below its melting ...

    Text Solution

    |

  5. Oxygen is the most abundant element. Aluminium is the most abundant ...

    Text Solution

    |

  6. A: Highly electropositive metals are extracted by electrolysis of thei...

    Text Solution

    |

  7. Zone refining is used to obtain metals in high degree of purity. Dur...

    Text Solution

    |

  8. Assertion :Ti can be purified by Van Arkel process. Reason: TiI(4) ...

    Text Solution

    |

  9. Assertion: Aluminothermy is used for extraction of chromium form chrom...

    Text Solution

    |

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

    Text Solution

    |

  11. By froth flotation process, carbonate and hydroxide ores are concentra...

    Text Solution

    |

  12. Standard free energy of formation for Al(2)O(3) and Cr(2)O(3) at 1273 ...

    Text Solution

    |

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

    Text Solution

    |

  14. Assertion: Nickel is purified by reaction it with CO. Reason: Impur...

    Text Solution

    |

  15. During reduction of ZnO to Zn, C is more efficient than CO. The stan...

    Text Solution

    |

  16. Graphite is used as anode but diamond is not. There exist free elect...

    Text Solution

    |

  17. Silver may be prepared by using silver coins. In this process, coins a...

    Text Solution

    |

  18. Reduction of Fe(2)O(3) with CO is done below 710^@C. Delta(f) G^(Ө) ...

    Text Solution

    |