Question

answer the following.........​

Answer 1

What is Reactivity series ?

• The vertical arrangement of metals in the order of their decreasing reactivity is known as reactivity series of metals. (Also known as activity series of metals.)
• The metals on the top of Reactivity series are most reactive and on the bottom are least reactive.

What is Chemical Displacement ?

• When a more reactive element replaces a less reactive element from its solution, then it is known as Chemical displacement.
• For example : when Copper sulphate react with Zinc then, zinc replaces copper from copper sulphate solution because Zinc is more reactive than copper, to form Zinc sulphate and copper as products.

What are the colors of Copper sulphate and Iron sulphate crystals ?

• Color of copper sulphate crystals : Blue
• Color of Iron sulphate crystals : Light green

Mention any four uses of Metals.

Uses of Metals are as follows :

• Some metals like copper and Aluminium are used for making wires, because Copper and Aluminium are good Electricity conductor.
• Iron, copper and Aluminium metals are also used for making utensils due to their malleability.
• Metals like Zinc are used for galvanizing process.
• Aluminium foils are used for packing food, medicines etc.
• Chromium and Nickel are used for electroplating.
• Silver, gold, platinum metals are used for making jewelry because of their lusture and malleability.
• One and only liquid metal at room temperature called Mercury is used in Thermometers.  
• Lead metal is used in Car batteries.

Mention any four uses of Non-metals.

Uses of Non metals are as follows :

• Hydrogen is used in Hydrogenation process, manufacture of Ammonia., Liquid hydrogen is used as Rocket Fuel.
• Carbon is used in making electrodes of cells.
• Nitrogen is used in Manufacturing of Ammonia, Nitric acid, Fertilizers etc. Nitrogen is also flushed in Food packets for prevention of Rancidity.
• Sulphur is used for making Gun powder.

Answer 2

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What is Reactivity series ?

The vertical arrangement of metals in the order of their decreasing reactivity is known as reactivity series of metals. (Also known as activity series of metals.)

The metals on the top of Reactivity series are most reactive and on the bottom are least reactive.

What is Chemical Displacement ?

When a more reactive element replaces a less reactive element from its solution, then it is known as Chemical displacement.

For example : when Copper sulphate react with Zinc then, zinc replaces copper from copper sulphate solution because Zinc is more reactive than copper, to form Zinc sulphate and copper as products.

What are the colors of Copper sulphate and Iron sulphate crystals ?

Color of copper sulphate crystals : Blue

Color of Iron sulphate crystals : Light green

Mention any four uses of Metals.

Uses of Metals are as follows :

Some metals like copper and Aluminium are used for making wires, because Copper and Aluminium are good Electricity conductor.

Iron, copper and Aluminium metals are also used for making utensils due to their malleability.

Metals like Zinc are used for galvanizing process.

Aluminium foils are used for packing food, medicines etc.

Chromium and Nickel are used for electroplating.

Silver, gold, platinum metals are used for making jewelry because of their lusture and malleability.

One and only liquid metal at room temperature called Mercury is used in Thermometers.  

Lead metal is used in Car batteries.

Mention any four uses of Non-metals.

Uses of Non metals are as follows :

Hydrogen is used in Hydrogenation process, manufacture of Ammonia., Liquid hydrogen is used as Rocket Fuel.

Carbon is used in making electrodes of cells.

Nitrogen is used in Manufacturing of Ammonia, Nitric acid, Fertilizers etc. Nitrogen is also flushed in Food packets for prevention of Rancidity.

Sulphur is used for making Gun powder.