SEPARATION OF SUBSTANCES
Separation of substances is done either to get desirable
substances or to remove harmful substances from the products. There are many separation
techniques to separate the components. One separation technique is FILTRATION .
FILTRATION- The process of separating suspended solid
matter from a liquid, by causing the latter to pass through the pores of
membrane, called a filter is called filtration.
Nowadays during the COVID situation, all of us are wearing
masks when stepping out of the houses. Have you ever thought that these masks
use filtration process to separate harmful components from air?
Masks and respirators are useful items to keep flu, airborne pandemics and COVID-19 at bay. Masks are excellent at blocking bodily fluids, which contain virus and bacteria. Face masks tend to be looser fitting against the face and leave a gap between your skin and the edge of the mask. This makes face mask fairly inefficient to block smaller germ-laden particulates, which can easily sneak into the open gaps. Face masks do protect the nose and mouth well from larger particulates including saliva and respiratory emissions.
Respirator masks, like N95 RESPIRATOR MASK, are very
similar to face masks in shape, but are more capable of protecting against
small contaminated air borne particulates. It is so designed to fit closely to
the face, eliminating the gap that regular face masks have. This mask will
protect the user against the small particles and will also, like regular face
masks, block and filter large particulates and protect against splash back,
sprays, and large droplets.
CAUTION: All face masks are one time use and should never be shared.
STAY SAFE, WEAR MASK On the basis of your understanding about how filtration technique is used to separate harmful contaminants present in air, answer the following
Q1What is the difference between simple ply mask and N95 mask?
2. choose the correct option?
Sl.no |
Statement |
Yes/No tick correct answer |
1 |
CORONA VIRUS gets spread from one person to another? |
Yes/ No |
2 |
Sensitization is not necessary for us |
Yes/no |
Q 3. What are the precaution
measures to be taken to be safe from COVID 19? Mention any two points.
Ans:__________________________________________________________
______________________________________________________________
4. Statements given below are incorrect. Write the correct statements.
a) The process by which the insoluble components of muddy water settle down is called decantation. __________________________________________________________________
b) The common salt is obtained from sea water
by the process of condensation. ________________________________________________________________________
Q5. Symptoms can be seen in
corona patients following are the given symptoms
(1)
Red Eyes
(2) Difficulty in breathing
(3)
Coughing
(4)
Body swelling
Choose the correct option
(a)
Only option 1
(b)
Option 1&2
(c)
Option 2&3
(d)
Only option 4
No comments:
Post a Comment
If you have any doubts, Please let me know.