Why do some metals lose their lustre?...

Why do some metals lose their lustre?

Promotional Banner

Promotional Banner

Topper's Solved these Questions

SEPRATION OF SUBSTANCES
MBD|Exercise EXAMPLE|75 Videos

Similar Questions

Explore conceptually related problems

Surface of some meltals lose their brightness when kept in air for a long time. Why?

Why do some metals occur in native state ?

Why do transition metals and their compounds are found to be good catalysts and form alloys ?

Why do some people use bifocal lenses?

When and why do some animals like frogs hibernate?

When and why do some animals like snails go into dormancy?

MBD-SORTING MATERIALS INTO GROUPS-EXAMPLE

Why are metals used for making wires ?
Text Solution
|
Give examples for metals.
Text Solution
|
Why do some metals lose their lustre?
Text Solution
|
Name few substances which are soluble in water.
Text Solution
|
Name few substances which are insoluble in water.
Text Solution
|
Name the liquids which are miscible in water.
Text Solution
|
Write names of some liquids which are immiscible water.
Text Solution
|
Name one gas that dissolves in water.
Text Solution
|
Name five such substances which sink in water.
Text Solution
|
Name five substances which float on water sufrace.
Text Solution
|
List five examles each of opaque and transparent materials.
Text Solution
|
Name some materials that can be used to make school bags.
Text Solution
|
Name some objects made from glass.
Text Solution
|
List some solutions that are used in your home.
Text Solution
|
Why water is called universal solvent?
Text Solution
|
Name four objects made each from the following materials:Leater,plasti...
Text Solution
|
The following objects are made of which materials:Plate and Pen.
Text Solution
|
What are soluble and insoluble substance?
Text Solution
|
Which of the following liquids mix well with water and which others do...
Text Solution
|
Which of the following substances float on water and which one sink in...
Text Solution
|