मराठी
सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Explain the Meaning of the Term Matter with Special Reference to the Term ‘Substance’.

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प्रश्न

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

एका वाक्यात उत्तर
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उत्तर

Matter refers to anything that has mass, occupies space, and can be felt by the senses. A substance is a type of matter with a consistent chemical composition and characteristic properties.

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पाठ 1: Matter and Its Composition - Exercise

संबंधित प्रश्‍न

Fill in the blank :

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


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


Explain why air is used to inflate tyres.


Classify the following as elements or compounds :
Iron, Iron sulphide, Sulphur, Chalk, Washing soda, Sodium, Carbon, Urea


What elements do the following compounds contain ?

Sugar, Common salt


State one property in which a solution of sugar in water resembles a mixture of sugar and sand, and one property in which it differs from it.


Classify the following into metals, non-metals and metalloids:
Silicon, Mercury, Diamond, Sulphur, Iodine, Germanium, Sodium, Carbon, Magnesium, Copper, Boron, Helium


Which of the following is not an element ?


Which of the two will scatter light : soap solution or sugar solution ? Why ?


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


Define solute.


What is meant by a solution? 


The solubility of ammonium chloride in water at various temperatures is given below :

Temperature : 10°C 20°C 40°C 60°C 80°C
Solubility : 24 g 37 g 41 g 55 g 66 g

What mass of ammonium chloride would be needed to make a saturated solution of ammonium chloride in fifty grams of water at 40°C ?


How will you separate camphor, common salt and iron nails from their mixture ?


Describe a method for separating a mixture of iron filings and sulphur powder other than that by using a magnet.


Draw a labelled diagram of the fractional distillation apparatus used for separating a mixture of alcohol and water.


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.


All the matter made of ______.


Gas-solid is ______.


Define the term matter.


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