Advertisements
Advertisements
प्रश्न
Write any three features and give two examples of covalent compounds
उत्तर
Features:
1)Covalent compounds possess a particular structure in space like tetrahedral, octahedral etc.
2)They are usually of low melting points and boiling points
3) They are of poor electrical and thermal conductivity.
Examples: Methane (CH4), Water (H2O)
APPEARS IN
संबंधित प्रश्न
What do you call the compounds having the same molecular formula but different structural arrangements of atoms?
Give one example of a molecule containing a single covalent bond.
Give one example of a molecule containing a triple covalent bond.
What type of bonding would you expect between Hydrogen and Chlorine?
Using electron-dot diagrams which show only the outermost shell electrons, show how a molecule of nitrogen, N2, is formed from two nitrogen atoms. What name is given to this type of bonding? (Atomic number of nitrogen is 7)
Explain why, diamond is hard while graphite is soft (though both are made of carbon atoms).
A covalent molecule having a double bond between its atoms is:
(a) Hydrogen
(b) Oxygen
(c) water
(d) ammonia
You can buy solid air-freshners in shops. Do you think these substance are ionic or covalent? Why?
Complete the following:
When the nuclei of two different reacting atoms are of ______ mass, then a bond so formed is called ______ covalent bond. (equal, unequal, polar, non-polar)
Write answer as directed.
What causes the existance of very large number of carbon compound ?
Molecular formula of Propane is C3H8 , write the structural formula of propane.
Covalent bonds can be single, double or triple covalent bonds. How many electrons are shared in each? Give an example of each type.
From the following hydrocarbon _______ is the cyclic hydrocarbon.
Write the molecular formula of the given compound.
Acetic acid
Write the molecular formula of the given compound.
Propylene
List two differences between the properties exhibited by covalent compounds and ionic compounds.
Consider the coordination compound, K2[Cu(CN)4]. A coordinate covalent bond exists between:
The correct structural formula of butanoic acid is -
Acetic acid was added to a solid X kept in a test tube. A colourless, odourless gas Y was evolved. The gas was passed through lime water, which turned milky. It was concluded that ______.
Assertion (A): Melting point and boiling point of ethanol are lower than that of sodium chloride.
Reason (R): The forces of attraction between the molecules of ionic compounds are very strong.
