Both NaNO3 an CaCO3 crystallize in Rhombohedral forms therefore they are:
Correct answer: C. Isomorphous
- A. Allotropes
- B. Polymorphous
- C. Isomorphous
- D. None of these
Explanation
Two or more substances having the same crystal structure called isomorphous.
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About Crystalline Solids
Crystalline solids contain particles arranged in a regular repeating lattice described by a unit cell. Their study includes coordination number, packing efficiency, density, anisotropy, cleavage, polymorphism and common crystal systems, along with ionic, molecular, covalent network and metallic crystals. Crystalline order differs from the random arrangement of amorphous solids.
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