Question

what are zolites? why PbCl4 is good oxidising agent? ​

Answer 1

Answer:

This happens because +2 oxidation state is more stable than +4 oxidation state due to the 'inert pair effect'. As we go down the group, the size of the atom increases as d and f electrons are far away from the nucleus. This makes the s electrons more tightly bound to the nucleus due to which they are reluctant to take part in chemical reactions. They act as an inert pair of electrons and this leads to increased stability of +2 oxidation state in group 14 elements. Instead of losing 4 electrons (2 from s orbital and 2 from p), they only tend to lose the p orbital electrons. Hence Pb4+ can easily gain 2 electrons to form more stable Pb2+ ions thereby acting as a strong oxidising agent.

Zeolites : Zeolites are crystalline solids structures made of silicon, aluminum and oxygen that form a framework with cavities and channels inside where cations, water and/or small molecules may reside. They are often also referred to as molecular sieves. Many of them occur naturally as minerals, and are extensively mined in many parts of the world finding applications in industry and medicine. However, most of zeolites have been made synthetically some of them made for commercial use while others created by scientists to study their chemistry.

Answer 2

Answer:

ANSWER :

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ZOLITES :

• Zeolites are crystalline solids structures made of silicon, aluminum and oxygen that form a framework with cavities and channels inside where cations, water and/or small molecules may reside
• They are often also referred to as molecular sieves.

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