MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryMole _ Equivalent ConceptAtomic and Molecular Masses
Consider the following statements, (I) Mixture may contain the components in any ratio and their composition is variable. (II) Pure substances have fixed composition. (III) The constituents of pure substances cannot be separated by simple physical methods. (IV) Copper, glucose, silver, gold, water are the examples of pure substances. (V) Glucose conatins carbon, hydrogen and oxygen The true statements are.
A.Only I,II,III
B.Only III,IV,V
C.Only II,IV,V
D.All of these✓ Correct
Explanation
(i) Mixtures may contain the components in any ratio and their composition is variable. (ii) Pure substance have fixed composition (iii) The constituents of pure substances cannot be separated by simple physical methods. (iv) Copper, silver, gold, water, glucose are examples of pure substances. (v) Glucose contains carbon, hydrogen and oxygen in a fixed ratio.