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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

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

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प्रश्न

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

एका वाक्यात उत्तर

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

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संबंधित प्रश्‍न

The inter-molecular space is maximum in


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Which one is a kind of matter:


A kind of matter which can sublime is


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Ink, Salt solution, Starch solution, Blood, Sugar solution


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(a) What type of change occurs when solid A is dissolved in water ? Why ?

(b) What type of change occurs when solid D is dissolved in water ? Why ?

(c) Name a metal which you think could behave like solid A. Also name the products B and C.

(d) Name the solid D if it is the one which is used in making ordinary dry cells.

(e) Name the process by which D can be recovered from E.


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


Name the process which is used in milk dairies to separate cream from milk.


Name the process by which common salt is obtained from sea-water.


What is chromatography ? State its two applications.


What is fractional distillation ? What is the use of fractionating column in fractional distillation ?


You are given a mixture of iodine in alcohol called tincture iodine. Which method will you use to recover both, iodine as well as alcohol, from this mixture ?


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Evaporation is always accompanied by ______ in temperature. 


Define the term matter.


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