The 'sea-water' can be classified as a homogeneous as well as heterogeneous mixture. Comment.
(N/A) Homogeneous mixture: When we consider sea-water as a solution of various salts dissolved in water,it appears uniform throughout,making it a homogeneous mixture.
Heterogeneous mixture: In its natural state,sea-water contains not only dissolved salts but also suspended particles like mud,sand,decayed plant matter,and microorganisms. Because these components are not uniformly distributed and can be physically separated,it is classified as a heterogeneous mixture.
Heterogeneous mixture: In its natural state,sea-water contains not only dissolved salts but also suspended particles like mud,sand,decayed plant matter,and microorganisms. Because these components are not uniformly distributed and can be physically separated,it is classified as a heterogeneous mixture.
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Which of the following statements are true for pure substances?
$(i)$ Pure substances contain only one kind of particles.
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$(iii)$ Pure substances have the same composition throughout.
$(iv)$ Pure substances can be exemplified by all elements other than nickel.
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$(ii)$ Pure substances may be compounds or mixtures.
$(iii)$ Pure substances have the same composition throughout.
$(iv)$ Pure substances can be exemplified by all elements other than nickel.
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