Advertisements
Advertisements
Question
Mention two uses of the following metals and non-metals
Iodine
Solution
It is used in photographic films in the form of potassium iodide.
It is added to salt to make it iodized salt which is necessary for the growth of human body.
APPEARS IN
RELATED QUESTIONS
Write the name and formulae of a metal hydride.
Which property of graphite is utilised in making electrodes?
State one use of Copper.
State one use of Aluminium.
Name an alloy of lead and tin.
Explain how, a reduction reaction of aluminium can be used for welding cracked machine parts of iron. Write a chemical equation for the reaction involved.
State two important uses of following metal
Uses of zinc
Why is hydrogen placed with alkali metals?
What is it made from? Why?
Ornaments
What is it made from? Why?
Pots and pans
Give a reason why a green deposit is seen on the surface of an article of copper
Complete the following flowchart.
Complete the following flow chart.
What is ductility?
Give reasons for the following.
- Aluminum foils are used to wrap food items.
- Immersion rods for heating liquids are made up of metallic substances.
- Sodium and potassium are stored in kerosene.
- Mercury is used in thermometers.
An element forms an oxide A2O3 which is acidic in nature. Identify A as a metal or non-metal.
______ is the first scientist who used the term element.
Sodium is a hard metal.
Why do metals appear shiny?
Which metals are not solid at room temperature?
