Physical and Chemical Changes in Hindi
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- เผยแพร่เมื่อ 30 ก.ย. 2024
- Physical and Chemical Changes. Can you identify these changes as I make lemonade in this video! What is the Difference between Physical and Chemical Changes? It's all explained in this video with interesting examples and exciting experiments!
Try the Top 3 Questions at the end of the video and write your answers & doubts in the comments below!
Try the Quiz and Top 3 Questions: www.manochaaca...
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At Manocha Academy, learning Science and Math is Easy! The school coursework is explained with simple examples that you experience every day! Yes, Science & Math is all around you! Let's learn every day from everyday life!
Sir please upload more video for class 7th superb teaching ☺️
Reading ⛔ Cooking ✅
You are right 😂
Bro sir sirf samjhane ki koshish kar rahe hai aur ye sab only example hai jisse. ham aur bhi easily samaj sake
Bhai koi sence hai kya 🙂
Yes bro mere ko lagata h ye phele chef the 1:28
The legends will see this video,the day before the exam😂
ANSWER 1 :(a) Boiling of water is a physical change as if we boil that water in a container it will have the same mass as it had before boiling.
(b)Rusting of iron is chemical change as new substance is formed from iron (i.e. Iron oxide is formed).
(c) Respiration is a chemical change as new substances are formed (i.e. energy, water, carbon-dioxide ) from
The breaking down of glucose from oxygen.
(d) Cutting of wood is a physical change as no new substance is formed in the cutting of this wood but it is an
Exceptional case like breaking of glass which can cannot be reversed similarly this also cannot be reversed but
No new substance is formed which is more important therefore it is a physical change.
ANSWER 2 :Cooking of food is a chemical change as new substances are formed from the raw
Ingredients and it cannot be reversed, therefore it is a chemical change.
ANSWER 3 :
(1)Physical changes are reversible such as boiling of water , melting of ice cubes whereas chemical changes are irreversible.such as cooking of food,digestion of food.
(2)New substances are formed in a chemical change such as when we cook food from raw ingredients we get some delicious food which is not as the ingredients whereas no new substances are formed in Physical changes such as cutting of wood.
(3) Physical changes are usually temporary whereas chemical changes are permanent.
BTW sir you are an awesome teacher you teach the subject of science the best in whole youtube
Thanku for your such a great help.and never stop from making such amazing videos.
Regards:
------- Naman Belwal ----------
1 . a ) Physical change
b) Chemical change
c) Chemical change
d ) Physical change
2) Cooking food is a chemical change because when food is cooked new substance is formed and it is irreversible reaction .
3 ) No new substance are formed in physical change . Most of the physical change are reversible. Example - Boiling of water
On other hand new substance are formed in chemical change. Most of the reaction of chemical change are irreversible. Example- Cooking food .
Vow!!What an interesting video.👍👍👏👏👏👏👏
1=boiling of water and rusting of iron 2=cooking of food is chemical change because we don't get that food again
1)
A) physical change
B) chemical change
C) chemical change
D) chemical
2) cooking of food is chemical change because as it involves the change in the composition of the food. After cooking, the raw ingredients of the vegetables cannot be regained.
3) Physical change is a temporary change. A chemical change is a permanent change. . Some examples of physical change arefreezing of water, melting of wax, boiling of water, . A few examples of chemical change are digestion of food, burning of coal, rusting
Sir plz reply my answer
Absolutely 😊😊😊
Q2:- Yes, it is a chemical change. REASON:- For eg:- when we cook food add spices to a vegetable, the spices can't be seperated from the vegetable
Very nicely explained sir 🤩🤩🤩wow understood everything nicely.
Thank you so much ❤❤sit
Sir
question 1 a=physical change
b=chemical change
c=physical change
d=physical change
question 2 chemical change because new substance is formed
question 3
PHYSICAL CHANGE=
1. no new substance is formed
2. mass remain unchange
3. In this change physical properties change
CHEMICAL CHANGE=
1. new substance is formed
2. mass changes
3. In this change chemical properties change
you are very intelligent .
In making lemonade can we get lemon juice and sugar back?then why it is consider as physical change aur yeh wapis reverse b nhi horaha hum lemon ko Pani se wapis kase nikalen
Sometimes it is irreversible.
Mayebe by some sort of evaporation ,u can get ur lemon back!
Thank you so much
Happy to hear that you liked the video :) Thanks!!
@@ManochaAcademyHindi thanks ye video banane ke liye
Thnx a lot.....sir......😀😁😃😄
And now i know the difference between chemical change and physical change💜
Nice explanation
Boiling of water :-physical change
Cooking of food:-chemical change
Cutting of wood:-physical change
Rusting of iron:-chemical change
Respiration:-chemical change
Wow sir
Good defination
Candle can't burn without oxygen
you are right
Wa wa thank you sir
Nice video 👍
Thanks sir 👍👍👍👍👍👍👍😀😀😀😀😀😊😊😊😊😊
Sir very good thanku for nice explanation Love for india
Yes sir
No
Supper sir😍😍🤩😘👌
yes! really so good
Good night
A. Chemical change
B. Chemical change
C. Chemical change
D. Chemical change
in making lemonade, can we get lemon juice and sugar back?? then why this is consider as physical change?
Yes, the lemon juice and sugar can be recovered from lemonade, which is why making lemonade is considered a physical change:
No new substances formed
When lemon juice and sugar are mixed with water, no new substances are created. The sugar and lemon juice simply dissolve in the water.
Reversible
The powder and water can be separated again by evaporation, demonstrating that this is a reversible physical change.
No change in color, smell, or temperature
Mixing lemon juice and sugar does not change the mixture's color, smell, or temperature.
Hi
Sir
if we mix lemon,sugar,salt and ice a new substance is formed which is called shikangi
After watching this, I'll be going to make refreshing lemonade water😂😋😋
🤣🤣🤣🤣🤣🤣🤣🤣
Padhna likhna Aata Nahin kya Jo answer Nahin bata sakte the yah sab likhane ki kya jarurat thi
Q1.
(a) chemical change, (b) chemical change
(C) chemical change (d) physical change
Q2. Cooking of food is chemical change because the mass is irreversible.
Q3. Physical change
- New physical formation can appearance.
- Reversible in nature
- Mass is constant
Chemical change
- No new physical formation
- Irreversible
- Mass is alternate
Pubg khelta hai
Q 2 i am thinking that like for example tea first we take some water now the water is boiling then we add some sugar and tea the boiling of water,sugar and tea is physical change then we add milk but milk is used everywhere like shake, paneer, curd so milk is chemical
Thanks sir
X
Nice
Sir aapne practical kr ke dikaya jise sab samaj aa gaya Thank you Sir
Btw aapne sikha diya Lemonade kaise banate h 😂😅
Plz tell 1st year physics
I will upload more Physics videos also!
4:26 mujhe v nimbu pani pine ka Mann ho gaya toh bana k pi lia🤣
Name Nahim Ahmed class 7 roll 51 al ameen academy nice video
What is name sir
Chemical change examples
1. Burning of papers
2. Burning of wood
Physical change example
1. Clothes Drying
2. Tearing of paper
Are my answers correct ?
No new substances is formed in physical change but New substance is formed in chemical change It is difference between physical and chemical change
You have taught me very nicely thanku sir
U are from uttrahand
Question no. 1 a) physical change b) chemical Change c) chemical change d) Physical Change Question no. 2 a) cooking of food is a chemical change as new substance is formed and it is irreversible. Question no. 3 Physical Change 1. No new Substance is formed 2. Reversible 3. Energy changes small Chemical change 1. New substance is formed 2. Irreversible 3. Energy changes large
plz say its right or wrong
hi
Mai bhi padhata hu ek bar dekh lo please aapko pasand aayega pakka.
Yes I was right
Q2..This chemical change happened because it is getting new food in it. We get energy by eating energy in food.
Tour are teaching way is very good
Thank you!!
question no 1 cutting of wood
question no 2 physical change because food not from new substance
question no 3 physical ;1 reversible ,2 energy change small ,3 no new substance formed chemical ; 1 irreversible , 2 lot of energy change ,3 new substance formed
Question 1 :
a ) Physical Change
b ) Chemical Change
c )Chemical Change
d ) Physical change
Question 2 :
a ) Cooking of food is a chemical change because it is irreversible. It is a permanent change and new substance is formed.
b ) Physical Change
- No new substance is formed.
- It is usually reversible.
- The mass does not changes
Chemical Change
- New substance is formed
- It is usually irreversible.
- The mass changes.
Gjf
i do not know answer please give me answer
Along with physical and chemical change he also taught how to make lemonade ......😁😋
Yes
😂😂
Lol
😄😄
😂🤣😋😊😌
1 Chemical change
2 chemical change
3 Physical change
4 Physical change
Question 2 chemical change, because A chemical change is type of change that new substance is formed.
ANSWER 1 :(a) Boiling of water is a physical change as if we boil that water in a container it will have the same mass as it had before boiling.
(b)Rusting of iron is chemical change as new substance is formed from iron (i.e. Iron oxide is formed).
(c) Respiration is a chemical change as new substances are formed (i.e. energy, water, carbon-dioxide ) from
The breaking down of glucose from oxygen.
(d) Cutting of wood is a physical change as no new substance is formed in the cutting of this wood but it is an
Exceptional case like breaking of glass which can cannot be reversed similarly this also cannot be reversed but
No new substance is formed which is more important therefore it is a physical change.
ANSWER 2 :Cooking of food is a chemical change as new substances are formed from the raw
Ingredients and it cannot be reversed, therefore it is a chemical change.
ANSWER 3 :
(1)Physical changes are reversible such as boiling of water , melting of ice cubes whereas chemical changes are irreversible.such as cooking of food,digestion of food.
(2)New substances are formed in a chemical change such as when we cook food from raw ingredients we get some delicious food which is not as the ingredients whereas no new substances are formed in Physical changes such as cutting of wood.
(3) Physical changes are usually temporary whereas chemical changes are permanent.
BTW sir you are an awesome teacher you teach the subject of science the best in whole youtube
Thanku for your such a great help.and never stop from making such amazing videos.
Regards:
------- Naman Belwal ----------
Hey but by boiling of water makes watervapour
And when the new substance is formed it is known as chemical change
------ ĎÂĶŠH MÂĽÎĶ 🙏🙏
But Dakshit Malik when we take the simple water it's formula is H2O and water
When boiled gives the same gas which is H2O only and there is no new substance formed here
The water remained water only and just the physical state of it changed...
1.5 hours before exam 🤣🤣🤣
1.1 Physical change
1.2 chemical change
1.3 chemical change
1.4 Physical change
Ans2. Cooking is chemical change because it is make a new subtance and not is reversible.
Ans3. Chemical change -
1. Make a new substance
2. Irreversible
3. Change of mass
Physical Change-
1.no make a new substance
2. Reversible
3. Unchange mass.
Q1. A) chemical change.
B) chemical change.
C) chemical change.
D) physical change.
Q2. Cooking of food is a chemical change because the ingredients we have used in making the dish/food cannot come back to their original form. Hence cooking of is a chemical change.
Q3. Physical change :-
1. No new substance is formed.
2. They can be reversible.
3. A little energy is consumed and released.
B). Chemical change.
1. New substance is formed.
2. They are irreversible.
3. Lot of energy is consumed and released.
Thanks sir for telling very easily
Sir chemical changes are rusting of iron and Respiration........
Physical change boiling of water and cutting of wood.............
Dissolving of water chemical change ha
Mixing lemon salt and water bhi chemical change ha
Sir burning of candle bhi physical change ha apne jo candle use ki ha vo alag ha ager hm normal candle use kare to uski mom bach jati ha or usko ikhta karke dubra candle bana sakte ha
Burning of candle chemical change hai!!
@@Sumit_rai49 kse hm candle ko dubra candle bana sakte ha bro
@@nisthacrazygirl5853 melting of a candle physical change hai iss se mom ikatha kr fir se candle bana skte hai
That is very good video I
Two things in this video recipe and education
A - physical change
B - chemical change
C - chemical change
D - physical change
What is man physical or chemical change 😜🤣😂
Sir please answer this question
Your video is very nice sir i liked ik and subscribed as well 👍✌
Sir, how is it possible to burn a candle in a closed container?
Thank you so much sir you explain it very well thnx sir
1stQ physical change= boiling of water.... chemical change=rusting of iron
Method of teaching is too gud sir🙏🙏🙏
Q3..Whatever new things are made, we call them chemical change and in which new things are not made, we are called physical change.
Sir you are best
😁
Mixing lemon salt and water chemical change ha kuki hm pani me se inko dubra se alag thodi ker sakte ha reverse thodi ker sakte ha
What is a burning of the paper
Chemical change
Chemical changes
BUT BURNING OF A CANDLE IS A BOTH CHEMICAL AND PHYSICAL CHANGE
Thanks sir beautiful video and material and their properties
Nice explanation sir
please explain the entire chapter breefly
2ndQ physical change...
The REASON is this process is not producing any new substances
Amazing👍🤩
Is it 5 years oold video 😮😮
Sir app ab video kyo nahi bante sir apnea video upload jaldi se kar ri ye
Hi
Sir I understood thanks
Question. 3
Chemical change
1) New substance is formed
2) irreversible
3) energy change large
Physical change
1) No new substance is formed
2) reversible
3) energy change small
Sir good explanation thanks sir😍😍😍
Ans 3 Difference 1 in Physical change (P.C) there is no new substance is formed 2 P.C are reversible 3 In P.C energy is changed a small Chemical change (C.C) Difference 1 in C.C new substance is formed 2 C.C are irreversible 3 In C.C energy is changed large
Thanks sir
Nice explanation sir ... 👍🔥
Boiling of water
PHYSICAL CHANGE
Very good..
Sir ..🌎🌈🥂
Thankyou soooo much sir very easy explanation
best vido
Sir pani ku cover kare boil karna hai ya bina cover karke 🤔🙄🤔🙄🤔🙄🤔🙄🤔🙄🤔
Nice video of physical and chemical change
You are talking like deepak kalal
Thank you sir 🙏🏼🙏🏼
very nice video
Thankyou soooooooo much sir 🙏🙏😊😊
Can we reverse the dissolving sugar in water
No
Out standing Sir .. very nice... 👍👍👍👌👌👌
Thank you so much sir awesome vedio very informative 🎉🎉🎉👍👍
yes