Question

Identify the elements from the following A air B iodine C water D amalgam

Answer 1

Answer:

B.Iodine is the element.

EXPLANATION:-

•Air-mixture of Nitrogen,Oxygen,carbon dioxide and other gases.

•Water-mixture of hydrogen and oxygen.

•Amalgam- mixture of Mercury with any metal.

Answer 2

Option (B) iodine is the correct option.

• In chemistry, the element is a substance that cannot be further broken down into its simpler components by any physical or chemical methods.
• Among all the options given iodine is the only element present.
• In the case of option (A) air is a mixture of different elements namely they are nitrogen, oxygen, carbon dioxide, other gases and dust particles. Therefore it is not the correct option.
• In the case of option (C), water is also a mixture of two elements in a defined proportion they are hydrogen and oxygen It contains two parts of hydrogen and one part of oxygen. There it is also the incorrect option.
• In the case of option (D) amalgam is an alloy which is therefore a mixture of two different metals they are mercury and any other metal. Therefore it is the incorrect option.

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