Classify the Following into Elements, Compounds and Mixtures: (A) Sodium (B) Soil (C) Sugar Solution (D) Silver (E) Calcium Carbonate (F) Tin (G) Silicon (H) Coal (I) Air (J) Soap (K) Methane - Science

Advertisements
Advertisements
One Line Answer

Classify the following into elements, compounds and mixtures:

(a) Sodium

(b) Soil

(c) Sugar solution

(d) Silver

(e) Calcium carbonate

(f) Tin

(g) Silicon

(h) Coal

(i) Air

(j) Soap

(k) Methane

(l) Carbon dioxide

(m) Blood

Advertisements

Solution

Elements

(a) Sodium

(d) Silver

(f) Tin

(g) Silicon

Compounds

(e) Calcium carbonate

(k) Methane

(l) Carbon dioxide

Mixtures

(b) Soil

(c) Sugar solution

(h) Coal

(i) Air

(j) Soap

(m) Blood

  Is there an error in this question or solution?
Chapter 2: Is Matter around us Pure - Exercises [Page 29]

APPEARS IN

NCERT Science Class 9
Chapter 2 Is Matter around us Pure
Exercises | Q 10 | Page 29

RELATED QUESTIONS

The smallest unit of matter that exists freely in nature is called ...........


Intermolecular force of attraction is maximum in ............ less in .......... and the least in .............


 Match the following

Column A Column B
(a) Molecules (i) Water boils
(b) 100° C (ii) Evaporation
(c) 0° C (iii) Changes from solid to gas
(d) At all temperatures (iv) Matter
(e) Camphor (v) Water freezes

The inter-molecular force is maximum in


The molecules can move freely anywhere in


Define the term matter. What is it composed of?


What do you mean by the inter-molecular spaces? How do they vary in different states of matter?


Solids have definite shape and definite volume. 


Liquids have definite volume but do not have definite shape.


Name the processes involved in two cases.


What is the difference between mass and weight?


Fill in the blank :

The state of matter with definite volume and definite shape is called______


Name the terms for the change of a solid into liquid.


Name the terms for the particles of matter which may or may not have independent existence.


 Name the terms for the change of vapour into a liquid.


What are molecules ?


Give one difference between atoms and molecules.


What are the two conditions for the interconversion of states of matter ?


Define the following term  of Atom .


Fill in the blank

Any matter which has a definite _______ but no definite shape is called a _______


Fill in the blank

Liquids have a definite ______


Write true or false for each statement. Rewrite the false statement correctly.

Matter cannot exist in different states.


Which one is a kind of matter:


All kinds of matter


A kind of matter which can sublime is


What is Brownian motion? Draw a diagram to show the movement of a particle (like a pollen grain during Brownian motion.


An inflated balloon full of air goes down slowly (becomes smaller and smaller slowly) even though the knot at the mouth of the balloon is airtight. And after a week all the air has escaped from the balloon. Explain how the air particles got out of the balloon.


Name a metal which is soft and a non-metal which is hard.


Which of the following substances are elements ?

Water, Salt, Mercury, Iron, Marble, Diamond, Wood, Nitrogen, Air, Graphite, Hydrogen, Oxygen, Sugar, Chlorine


Give reason why copper metal is used for making electric wires.


What are (i) metals (ii) non-metals, and (iii) metalloids ? Give two examples each of metals, non-metals and metalloids.


Which one of the following is not a metalloid ?


Calculate the concentration of a solution which contains 2.5 g of salt dissolved in 50 g of water.


Define solute.


Explain what happens when a beam of light is passed through a colloidal solution.


How will you differentiate between a suspension and a colloid ?


What is a colloid ? Give two examples of colloids (or colloidal solutions)


Which of the following is not an emulsion ?


Which of the following can be called a suspension ?


Name the property of one of the constituents which can be used to separate a mixture of salt and iodine


A carpenter wants to separate iron nails from saw-dust. Which method of separation should he choose ?


Describe the method of separating a mixture containing common salt, sand and ammonium chloride.


What is chromatography ? State its two applications.


There are three liquids A, B and C, all having different densities and different boiling points. Liquids A and C are organic in nature whereas liquid B is considered to be inorganic. When liquids A and B are put together in a container, they form a single layer. On the other hand, when, liquids B and C are mixed, they form two separate layers :

(a) Which process will you use to separate a mixture of A and B ?

(b) Which method will you use to separate a mixture of B and C ?

(c) Name the liquids which would behave like (i) A (ii) B and (iii) C.


Explain the meaning of the term matter with special reference to the term ‘substance’.


Explain the meaning of the term ‘matter’.


Differentiate between the-two characteristics of matter – ‘mass’ & ‘weight’.


Select the correct answer from A, B, C, D & E for the statement given below:

An atom or group of atoms _________ having a resultant charge.


We need to make a sherbet quickly for some guests. But we only have sugar candy in the house.


We need to rub salt on a corncob but only salt crystals are available.


Write a few lines on the blackboard with a chalk. Now observe the chalk. What changes do you see in the chalk?


Wipe the board with a duster and then tap the duster against the table. What do you see?


If there is a sudden shower, we take shelter under a roof at the roadside. Even though the rain does not fall on us directly, we get wet to some extent. Why ?


Asmita went to buy an earthen pot. There she saw many things kept for sale.
How did she identify what she needed?


Asmita went to buy an earthen pot. There she saw many things kept for sale.
From what substance has the potter made all the things?


Asmita went to buy an earthen pot. There she saw many things kept for sale.
What is the difference between a substance and an object?


Matter is made up of ______.


Complete the given analogy.

Murukku from hot oil: ______:: Coffee powder residue from decoction: ______


The property which allows the metals to be hammered into their sheets is ______.


Name the metals that are used in jewellery.


Why wires cannot be drawn from materials such as stone or wood?


______ is a smallest particle.


What type of matter glass is?


The most reactive metal is ______.


Atoms or groups of atoms having a charge are called ______.


______ is so hard that it can scratch glass.


Which statement is not correct for a mixture 


Solid is an arrangement of particles ______.


Gases change to liquid by the process of ______.


The physical state of water at 373 K is ______.


Atoms are tiny particles that repel each other when they are squeezed very close.


Boiling refers to the process by which a substance changes from the liquid to the gaseous state at its ______ point.


______ is used for industrial refrigeration and transporting frozen food.


Compressibility of solids: ______.


Gas-solid is ______.


Give an example of a molecule.


Define the term matter.


Write a scientific reason.

Lemon sherbat has a sweet, sour and salty taste and it can be poured in a glass.


Define the term matter.


Write scientific reason.

Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.


Define the term matter.


Define the term matter.


Define the term matter.


Define the term matter.


Share
Notifications



      Forgot password?
Use app×