Question

How will you purify impure water? for class 6th cbse​

Answer 1

Explanation:

ᴡᴀyꜱ ᴛᴏ ᴩᴜʀɪꜰy ᴡᴀᴛᴇʀ

1. ʙᴏɪʟɪɴɢ. ᴛʜᴇ ꜱɪᴍᴩʟᴇꜱᴛ ᴀɴᴅ ᴍᴏꜱᴛ ᴄᴏᴍᴍᴏɴ ᴍᴇᴛʜᴏᴅ ᴛᴏ ᴩᴜʀɪꜰy ᴅʀɪɴᴋɪɴɢ ᴡᴀᴛᴇʀ ɪꜱ ᴛᴏ ʙᴏɪʟ ɪᴛ.
2. ᴄᴏᴍᴍᴇʀᴄɪᴀʟ ꜰɪʟᴛᴇʀꜱ. ᴛʜᴇʀᴇ ᴀʀᴇ qᴜɪᴛᴇ ᴀ ꜰᴇᴡ ᴡᴀyꜱ ᴛᴏ ꜰɪʟᴛᴇʀ ᴡᴀᴛᴇʀ ꜰᴏʀ ꜱᴀꜰᴇ ᴅʀɪɴᴋɪɴɢ.
3. ꜱʟᴏᴡ ꜱᴀɴᴅ ꜰɪʟᴛʀᴀᴛɪᴏɴ.
4. ʙʟᴇᴀᴄʜ.
5. ʟɪqᴜɪᴅ ɪᴏᴅɪɴᴇ ᴀɴᴅ ɪᴏᴅɪɴᴇ ᴛᴀʙʟᴇᴛꜱ.
6. ɴᴏɴ-ᴄʜᴇᴍɪᴄᴀʟ ꜱᴛᴀʙɪʟɪᴢᴇᴅ ᴏxyɢᴇɴ.
7. ꜱᴏʟᴀʀ ᴅɪꜱɪɴꜰᴇᴄᴛɪᴏɴ.
8. ᴜʟᴛʀᴀᴠɪᴏʟᴇᴛ ʟɪɢʜᴛ.

Answer 2

Answer:

Filtration: In this method, insoluble impurities are removed by passing impure water through a filter or a filter paper.

Sedimentation and decantation: In this method, impure water is allowed to stand undisturbed in a container, which allows insoluble impurities like mud to settle at the bottom as sediments. This process is called sedimentation. Clean water can thereafter be transferred into a clean container by the process of decantation.

Distillation: In this method, impure water is first heated to its boiling point to convert water into steam. The impurities are left behind in the container. The steam is then passed through a condenser, where it cools and changes back into liquid water.

Boiling: Boiling water is one of the easiest ways of purifying water. It is, however, very important that water is boiled at 100°C for at least 10-15 minutes to kill harmful microorganisms.

Addition of chemical tablets: Chemicals like chlorine tablets or potassium permanganate can be added to water from wells and water tanks to kill harmful microorganisms and germs.

Use of electric water filters: Electric water filters have a micro-porous filter, carbon, and a source of ultraviolet radiation. The micro-porous filter strains out physical impurities present in the water, like dust, rust, dirt, and mud. Carbon absorbs organic impurities and removes unwanted taste and odour. Ultraviolet radiation kills microorganisms.

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