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Covalent compounds have low melting poin...

Covalent compounds have low melting points because

A

Atoms as their strural units

B

molecules as structural units

C

ions held together by electrostatic forces

D

high melting points

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The correct Answer is:
A
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Explain why: (a). Covalent compounds have generally low melting points. (b) ionic compounds have generally high melting points.

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TARGET PUBLICATION-SOLID STATE-QUESTION
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  2. Write a distinguishing feature of a metallic solid compared to an ioni...

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  3. Covalent compounds have low melting points because

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  4. solids are also called giant solids or network solids .

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  5. In which form are the carbon atoms in graphite arranged?

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  6. The hybridisation of carbon in diamond, graphite and acetylene are res...

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  7. C(60) is aromatic allotrope of carbon containing

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  8. Crystals can be classified into ….basic crystal habits

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  9. How many types of Bravais lattices can occur in crystalline solids?

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  10. What are the correct axial distance and axial angles for rhombohedral ...

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  11. In a simple or primitive unit cell, what is the number of atoms per un...

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  12. What is the two-dimensional coordination number of a molecule in squar...

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  13. In planar square close packing , each sphere is surrounded by .

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  14. In a close packed array of N spheres, the number of tetrahedral holes ...

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  15. the number of tetrahedral voids per unit cell in NaCl crystal is ...

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