JEE Main Chemistry question

Chemistry General Principles and Processes of Isolation of Elements (Metallurgy)JEE Main

Not in JEE Main or NEET syllabus

How many of the following elements exclusively occur in combined state?

Gold, iron, zinc, aluminum, platinum, sodium, magnesium

Answer: 5

Solution

Gold and platinum, being noble and chemically inert, are found in the free (native) state in nature and so are excluded. Iron, zinc, aluminium, sodium and

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Question ID VK-145580