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Which metal is more reactive from - (A) Sodium (B) Copper (C) Silver (D) Mercury. Explain how?

Answer 1

It is sodium.

While sodium reacts with oxygen and produces an explosive reaction when it comes into contact with water, copper, silver, and mercury do not react with either water or oxygen, allowing them to stay in their metallic state for years.

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Answer 2

Naomi Aronson

The most reactive metal among the options provided is sodium (A). Reactivity increases as you move down the periodic table in group 1 elements. Sodium is in group 1, while copper, silver, and mercury are not. Copper and silver are transition metals, which are generally less reactive than group 1 metals. Mercury is also less reactive compared to sodium. Therefore, sodium is the most reactive metal among the options listed.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.