Question

Give reasons.
1. Sodium and potassium are stored in kerosene while phosphorus is stored in water.
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2. Metallic pans have wooden handles.
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3. Gold and silver are used in making jewellery.

Answer 1

Answer:

1. sodium and potassium are highly reactive metal which react with the O2 present in the Atmosphere,thus they are stored in kerosenes. phosphorus a non metal is again a highly reactive non metal, therefore stored in water.
2. metallic pans have wooden handles to resist the heat as wood is an insulator of heat.
3. gold and silver are metals which are malleable , therefore it can be used in making jewelleries.

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Answer 2

Answer:

sodium and potassium are stored in kerosene oil because they react with water and oxygen (air). while phosphorus not .

metallic pans have wooden handles due to this metal can't be able to react with something.

gold and silver are used as a jewelry because they have shining and lustrous also nonreactive as well as they are costly.

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