हिंदी
सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Solutions Are

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प्रश्न

Solutions are

विकल्प

  • heterogeneous mixture

  • compounds

  • homogeneous mixture

  • elements

MCQ
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उत्तर

homogeneous mixture

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Elements, Compounds and Mixtures - Additional questions 3

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एस पी सिंग Concise Chemistry [English] Class 7 ICSE
अध्याय 3 Elements, Compounds and Mixtures
Additional questions 3 | Q 2

संबंधित प्रश्न

List five characteristics by which compounds can be distinguished form mixtures.


What is a mixture ? Give two example of mixtures.


Three mixtures A, B and C are obtained by stirring three different solids in water taken in separate beakers. When mixture A is allowed to stand for some time, then its particles settle at the bottom of the beaker. When a beam of light is passed through mixture A in a dark room, the path of light becomes visible when observed from the side of the beaker. When mixture B is allowed to stand for a considerable time, even then its particles do not settle down. Mixture B, however, scatters the beam of light just like mixture A. The particles of mixture C do not settle down on keeping and it also does not scatter a beam of light passing through it.

What are the mixtures like A known as ?

What are the mixtures like B known as ?

What are the mixtures like C known as ?

Name the phenomenon exhibited by A and B which occurs on passing a beam of light through them.

Name one mixture each which is like (i) A (ii) B, and (iii) C.


Name any two solid substances whose mixture can be separated by sublimation.


Give two examples of the following type of mixture.

solid-solid


Write “true” or “false” for the following statement

Jewellery gold is a homogeneous mixture of metals.


Give an example of mixtures of elements and compounds.


How is a mixture of common salt, oil and water separated? You can use a combination of different methods.


Sucrose (sugar) crystals obtained from sugarcane and beetroot are mixed together. Will it be a pure substance or a mixture? Give reasons for the same.


Write scientific reason.

Lemon sherbet has a sweet, sour and salty taste, and it can be poured into a glass.


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