answer the following.........
Answers
Questions :
- what is reactivity series?
- What is chemical displacement?
- What are the colors of copper sulphate and iron sulphate Crystal's
- Mention any four uses of metals .
- Mention any four uses of non metals.
Answer 1]
a reactivity series is an empirical, calculated, and structurally analytical progression of a series of metals, arranged by their "reactivity" from highest to lowest.
Answer 2]
reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound.
Example: Reaction of iron nails with copper sulphate solution.
Answer 3]
The ferrous sulphate crystals are light green. Ferrous sulphate is also obtained as a by-product in the manufacture of titanium pigment and copper sulphate.
Answer 4]
Metals Iron is used for making automobiles, machinery, pipes, containers, nails, etc.
Answer 5]
Four uses of non-metals are as follows:
(i) Chlorine is used for purifying water.
(ii) Phosphorous is used in crackers.
(iii) Graphite is used as a good conductor of electricity.
(iv) Nitrogen is used by plants.
Explanation:
1.The reactivity series of metals, also known as the activity series, refers to the arrangement of metals in the descending order of their reactivities.
The data provided by the reactivity series can be used to predict whether a metal can displace another in a single displacement reaction. It can also be used to obtain information on the reactivity of metals towards water and acids.
2. Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound. Both metals and non-metals take part in displacement reactions. Example : Reaction of iron nails with copper sulphate solution.
3. Copper sulphate is blue and iron sulphate is green.
4. Metals are usually very strong, most durable and highly resistant to everyday wear and tear. As such, they have been used since ancient times for a lot of things. And even today with advances in technology and a lot of other things the uses of metals have broadened greatly. Metals even play a key role in the economy. Let’s look at some important and popular metals uses.
In the Construction Industry
In electronics
In medicine
Machinery, Refractory and Automobiles
Decorative products
Other Uses
5. Amorphous form of carbon, charcoal is used for ultrafiltration in modern water filters. Also, it is used in refrigerators to control bad odour. Below are the nonmetals uses in different fields:
Uses of nonmetals in our daily life
Nonmetals used in fertilizers
Nonmetals used in crackers