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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

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:
D
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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 ______.

Knowledge Check

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

    A
    If both (A) and (R ) are correct and (R ) is the correct explantion of (A )
    B
    If both (A) and (R ) are correct and (R ) is not the correct explantion of (A )
    C
    If (A) is correct but (R ) is incorrect
    D
    If (A) is incorrect but (R ) is correct

  • Statement - 1 : All minerals are ores. Statement - 2 : Ores are minerals from which metal can be extracted conveniently and economically.

    A
    Statement - 1 is True, Statement - 2 is True, Statement - 2 is correct explanation of Statement -1.
    B
    Statement - 1 is True , Statement - 2 is not a correct explanation of Statement - 1.
    C
    Statement - 1 is True, Statement - 2 is False.
    D
    Statement - 1 is False, Statement - 2 is True.

  • Assertion : All the ores are mineral.

    A
    If both assetion and reason are CORRECT, and reason is the CORRECT explanation of the assertion
    B
    If both assertion and reason are CORRECT, but reason is NOT the CORRECT explanation of the assertion
    C
    If assertion is CORRECT but reason is INCORRECT
    D
    If assertion is INCORRECT but reason is CORRECT
    • NARAYNA-METALLURGY-STATEMENT TYPE QUESTOINS
    1. Assertion: All minerals are ore. Reason: Ores are minerals from whic...

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

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

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

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

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

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

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

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

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    10. Steel contains more carbon than wrought iron

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

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

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

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

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

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

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

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    18. Zinc is used to protect corrosion of iron because

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

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

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