This video provides a clear and systematic breakdown of fundamental chemistry, making it a highly practical resource for student exam preparation. It effectively simplifies complex classification and separation techniques into digestible, curriculum-aligned insights.
Deep Dive
Prerequisite Knowledge
- No data available.
Where to go next
- No data available.
Deep Dive
9th science unit 10 matter around us book back question answer
Added:children, in the video learn ninth science learn unit 10 matter around us learn book back questions but learn First, choose the correct answer.
First question, the separation of denser particles from lighter particles done by rotation at high speed is called Answer D, centrifugation.
Second, among the following, dash is a mixture.
Answer B, juice.
Third, when we mix a drop of ink in water, we get a Answer C, homogeneous mixture.
Fourth, dash is essential to perform separation by solvent extraction method.
Answer A, separating funnel.
Fifth, dash has the same properties throughout the sample.
Answer A, pure substance.
Next, true or false. First one, oil and water are immiscible with each other.
True.
Second, a compound cannot be broken into simpler substances chemically.
This is false.
A compound can be broken into simpler substances chemically.
Third, liquid liquid colloids are called gels.
False.
Liquid to solid colloids are called gels.
Fourth, buttermilk is an example of heterogeneous mixture.
True.
Fifth, aspirin is composed of 60% carbon, 4.5% hydrogen, and 35.5% oxygen by mass.
Aspirin is a mixture.
False.
It is compound. It is because the components are combined in a fixed ratio by mass.
Next, match the following.
Element made of atoms.
Compound made of molecules.
Colloid pure substance.
Suspension settle downs on standing.
Mixture impure substance.
Next, fill in the blanks.
First, a dash mixture has no distinguishable boundary between its components. Answer, homogeneous.
Second, an example of a substance that sublimes in Answer, camphor.
Third question, alcohol can be separated from water by distillation.
Fourth, in petroleum refining, the method of separation used is fractional distillation.
Fifth, chromatography is based on the principle of different solubilities.
Next, answer very briefly. First question, differentiate between absorption and adsorption.
You got your answer page number 119 here.
So, page number 119 in the chromatography paragraph. Yeah.
Adsorption and the paragraph full of absorption and the paragraph full of You know, first question kind of answer.
Second question, define sublimation. You got your answer page number 117 letter K.
Page number 117 letter sublimation paragraph. Certain solid substances other less stuff bunny.
May learn the examples ammonium chloride etc. I don't like it good second question going to answer.
Third question, a few drops of Dettol when added to water the mixture turns turbid. Why? You got the answer page number 121 letter K.
Page number 121 letter An emulsion is a colloid of two or more immiscible liquids other less stuff bunny and don't mix other less stuff bunny third question going to answer.
Fourth, name the apparatus that you will use to separate the components of mixtures containing two >> [snorts] >> immiscible liquids miscible liquids.
You got the answer page number 117 letter K.
So, page [snorts] number 117 letter in the mark bunny the motto two immiscible liquids solvent extraction two miscible liquids fractional distillation.
You got the fourth question going to answer.
Fifth, name the components in each of the following mixtures.
ice cream ice cream letter cream, milk, sugar, water either or other components.
Next, lemonade.
Lemonade letter lemon juice, sugar, and water.
Yeah.
Yeah, nitrogen, oxygen, carbon dioxide, water vapor, and other gases.
After the soil, clay, sand, and various types of salts.
After that, answer briefly. First question, which of the following are pure substances?
Ice, milk, iron, hydrochloric acid, mercury, brick, and water.
Pure substances.
Ice, iron, hydrochloric acid, mercury, and water are pure substances.
Second, oxygen is very essential for us to live.
It forms 21% of air by volume.
Is it an element or compound?
Oxygen is an element. It contains the atoms of oxygen of the same kind.
Third, you have just won a medal made of 22 karat gold.
Have you just procured a pure substance or impure substance?
I have procured an impure substance.
It is made of 22 parts of pure gold and two parts of copper or silver.
Because pure gold is 24 karat.
Fourth, how will you separate a mixture containing sawdust, naphthalene, and iron filings?
The answer, the iron filings in the mixture can be separated by magnetic separation and naphthalene by sublimation.
Sawdust will be remaining at the bottom.
Fifth, how are homogeneous solutions different from heterogeneous solution? Explain with example.
So, page number 116 learn the homogeneous and heterogeneous mixture and the paragraph.
A mixture in which the components cannot be seen separately is called homogeneous mixture. Homogeneous The next page learn It has a uniform composition and every part of the mixture has the same properties. It's the second point.
Then, tap water, milk, air, ice cream, sugar syrup, ink, steel, bronze, and salt solution are homogeneous mixtures. It's the example. It's the third point.
After that, heterogeneous mixture. It's the example. It's the first point. A mixture in which the components can be seen separately is called heterogeneous mixture.
Second point, it does not have a uniform composition and properties.
Third, soil, a mixture of iodine and common salt, a mixture of sugar and sand, a mixture of oil and water, mixture of sulfur and iron filings, and a mixture of milk and cereals. It's the It's the heterogeneous order, example.
So, tablet column put it and you can either fifth question or the answer.
After that, answer in detail. It's seventh Roman letter.
First question, write the differences between elements and compounds and give an example for each.
So, page number 115 learn.
7th Roman letter Second question, explain Tyndall effect and Brownian movement with suitable diagram.
So, page number 120 learn.
Brownian movement in the first paragraph.
After that, third question, how is the mixture of common salt, oil, and water separated?
You can use a combination of different methods.
You don't answer.
The mixture of common salt, oil, and water taken in a beaker.
The salt dissolves in water. Allow it to stand for a few minutes.
The mixture of two immiscible liquids is separated by a separating funnel.
The oil floats on top.
The water can carefully be separated by opening the stopcock in the separating funnel.
The oil is left behind in the separating funnel.
The salt water is heated slowly in a distillation flask with a water condenser.
The pure water vapor passes through the inner tube of the condenser.
The vapors on cooling condense into pure water and are collected in a receiver.
The salt is left behind in the flask as a residue.
Answer very briefly the second question.
Define sublimation.
And fourth, name the apparatus that you will use to separate components of mixtures containing two miscible liquids, immiscible liquids.
Then fifth, name the components in each of the following mixtures. It is all important.
Then answer briefly the first question.
Which of the following are pure substances?
Second, oxygen is very essential for us to live. Are they important?
Then Fifth, how are homogeneous solutions different from heterogeneous solution?
It is all very important.
Then answer in detail the first question. Write the difference between elements and compounds. It is all very very important.
Then second question important.
So the lesson complete. Thank you.
Thanks for watching.
Related Videos
INORGANIC CHEM TEST-20 VIDEO SOLUTION FOR RE NEET-2026
GOALINSTITUTEOFFICIAL
232 views•2026-06-18
Not all lab grown sapphires are the same
MasonMignanelli
95K views•2026-06-18
PLASTIC PYROLYSIS (under 400C) CAN'T BE DONE - Unless You Try
loweredexpectations4927
1K views•2026-06-19
Potion Identification
TheSarcasticSmith
4K views•2026-06-16
Special Report | NH3 உடலில் நுழைந்தால் என்ன நடக்கும்? நடுங்கவிடும்பகீர் தகவல்கள்
thanthitv
30K views•2026-06-21
Part B first video AP chem revision qs1-10
AmandaMarounjly
178 views•2026-06-17
Chemist Debunks Pseudoscience About Element 115
chemistscodex
203 views•2026-06-20
Mystery of Delhi's Rustless Iron Pillar
ProTipDaily
633 views•2026-06-18
Trending
Nobel Scientist Creates Device to Harvest Water From Desert Air
DrBenMiles
2200K views•2026-06-16
He’s the RICHEST MAN in AFRICA
Schoolofhardknocksshortz
1032K views•2026-06-19
The First Photos On Venus’ Surface
CleoAbram
5145K views•2026-06-18
Didn't Think It Could Get More Pathetic
penguinz0
377K views•2026-06-21











