Question

What are the characteristic properties of a pure substance ? Why do we need them ?​

Answer 1

Answer:

Pure substance : Pure substances have a definite set of properties such as boiling point, melting point, density, etc. They are all homogeneous i.e., their composition is uniform throughout the bulk. Both elements and compounds are pure substances.

Answer 2

Answer:

h ki ve apane ghar se bahar bhi kiya hai ek adhikari ko bhi q q ki ye log kisi n d match ka puraskar diya hai mere pas i am fine art ka nara diya hai mere sath hi ke din hi ke din hi ke din hi ke din hi ke din hi ke din hi ke din hi ke din hi ke din hi ke din hi ke din hi ke sthan ko lekar hai ki vo apani man ki ekagrata aur man e e e u e e u i ne apane ghar ke liye aur adhik padhen aur janen ki ve apane ghar men se ek hai aur apane aap hi