Give scientific reasons:Covalent compounds have low melting and boilin – InterviewSolution

1.	Give scientific reasons:Covalent compounds have low melting and boiling points.
Answer» When substances melt or boil, bonds between the molecules are broken due to heat supplied. On covalent compounds, the intermolecular forces of attraction are weak. Hence, intermolecular forces in covalent compounds are broken easily due to which they have low melting and boiling points.

Discussion

No Comment Found

Related InterviewSolutions

Give the uses of Coal.
Name the following:Components of biogas
CH3 – C = CH is …………… . (a) Propene (b) Propyne(c) Ethyne(d) Ethene
Give the following information of carbon dioxide: Molecular formula, Molecular mass, Melting point, Percentage occurrence in air.
Biogas contains about methane. (a) 55% to 60% (b) 20% to 25% (c) 90% to 95% (d) 40% to 45%
Write scientific reasons:Graphite is not used in ornaments.
Write two physical properties each:Fullerene
Melting point of methane is (a) -182.5 °C (b) -161.5 °C (c) 182.5 °C (d) 161.5 °C
Carbon dioxide gas is not used in (a) photosynthesis (b) aerated drinks(c) glass cutting (d) fire extinguishers
Match the columns:Column ‘A’Column ‘B’(1) Diamond (a) Hexagonal layered structure (2) Fullerenes (b) Tetragonal three dimensional structure (3) Graphite(c) Geodesic dome