Which of the following are Noble metals?

Gold

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Silver

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Platinum

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Iron

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Solution

The correct options are
A
Gold

B
Silver

C
Platinum

Noble metals are the one which does not get corroded as well as resist chemical action on them. These cannot be easily attacked by acid.

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Platinum, palladium and iridium are called noble metals because:

Give scientific reasons.

(a) Gold and silver are used is coins.

(b) Ornaments are generally not made from 24-carat gold.

(d) Gold and platinum are called noble elements.

(e) Stainless steel has more lustre than iron.

Multiple choice question : (answer with reason)

Silver , gold and platinum are called noble metals because

A) these are costly

B) these are precious

C ) these have very less reactivity

D) all of these

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