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प्रश्न
Write “true” or “false” for the following statement
Jewellery gold is a homogeneous mixture of metals.
पर्याय
True
False
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उत्तर
False
Correct Statement: Jewellery gold is a heterogeneous mixture of metals.
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संबंधित प्रश्न
Select the correct alternative from the choices given for the following statement:
Example of a homogeneous mixture is
Many indigestion mixtures are suspensions. What do the instructions written on the bottle of an indigestion mixture tell us before taking the mixture, and why ?
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 the components present in the following mixture:
Tap water
State the principle involved in separation of solid-solid mixtures by Sublimation
Suggest separation technique(s) one would need to employ to separate the following mixture.
Common salt, water and sand
What would you observe when
a mixture of iron filings and sulphur powder is heated strongly
A mixture of chloroform and water are taken in a separating funnel is mixed and left undisturbed for some time. The upper layer in the separating funnel will be of ______ and the lower layer will be that of ______.
A mixture of two or more miscible liquids, for which the difference in the boiling points is less than 25 K can be separated by the process called ______.
When elements are physically mixed they form ______.
