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प्रश्न
Seawater tastes salty due to the dissolved salt. the salinity (the proportion of salts in water) of some water bodies Lonar lake - 7.9 %, Pacific Ocean 3.5%, Mediterranean sea - 3.8%, Dead sea - 33.7%. Explain two characteristics of the mixture from the above information.
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उत्तर
Characteristics of mixtures from above information are:
- Constituent substances of a mixture are two or more elements or compounds.
- The proportion of constituent substances in a mixture can be variable.
- The properties of constituent substances are retained in the mixture.
संबंधित प्रश्न
What is the major difference between a solution and an ordinary mixture ?
List five characteristics by which compounds can be distinguished form mixtures.
Which of the following are homogeneous in nature ?
- ice
- wood
- soil
- air
The ‘sea water’ can be classified as a homogeneous mixture as well as a heterogeneous mixture ? Comment.
Which one of the following is most likely to exhibit Tyndall effect ?
Which of the following can be separated by using a separating funnel and which cannot be separated by using a separating funnel ?
- water and kerosene mixture
- water and acetone mixture
Give reasons for your answer.
Write “true” or “false” for the following statement
Steel is an alloy of iron and aluminum.
Which of the following are physical changes?
(i) Melting of iron metal
(ii) Rusting of iron
(iii) Bending of an iron rod
(iv) Drawing a wire of iron metal
Under which category of mixtures will you classify alloys and why?
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
