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Platinum, Palladium and Iridium are call...

Platinum, Palladium and Iridium are called noble metals because -

A

Alfred Noble discovered them

B

they are shining, lustrous and pleasing to look at

C

they are found in native state

D

they are inert towards many common regents

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • Gymnosperms are called naked plants because they lack

    A
    Endosperm
    B
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    C
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    D
    Cotyledons

  • Mercury is a liquid metal because -

    A
    it has a completely filled d - orbital that prevents d - d overlapping of orbitals
    B
    it has a completely filled d - orbital that causes d - d orbital that causes d - d overlapping
    C
    it has completely filled 6s - orbital
    D
    it has a small atomic size

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