Advertisements
Advertisements
प्रश्न
What is graphite?
Advertisements
उत्तर
Graphite is an allotrope of carbon, and is a soft, greyish black and opaque substance. The graphite is made up of carbon atoms
APPEARS IN
संबंधित प्रश्न
Give reason why carbon compounds are generally poor conductors of electricity.
What type of chemical bond is formed between carbon and bromine?
What type of bonds are present in hydrogen chloride and oxygen?
Explain the formation of a chlorine molecule on the basis of electronic theory of valency.
Why is graphite used for making dry cell electrodes but diamond is not?
Draw the electron-dot structure of a hydrogen chloride molecule.
What type of bonding would you expect between Carbon and Chlorine?
Using electron-dot diagrams which show only the outermost shell electrons, show how a molecule of oxygen, O2, is formed from two oxygen atoms. What name is given to this type of bonding? (At. No. of oxygen = 8)
An element A has 4 valence electrons in its atom whereas element B has only one valence electron in its atom. The compound formed by A and B does not conduct electricity. What is the nature of chemical bond in the compound formed? Give its electron-dot structure.
Give two example in following case:
Gaseous polar compounds
Write answer as directed.
Saturated hydrocarbons are classified into three types. Write these names giving one example each.
What do you understand by lone pair and shared pair?
Fill in the blank with correct word from the bracket.
Melting and boiling points of covalent compounds are generally ______ (low, high).
Which of the following is a common characteristic of a covalent compound?
Draw an electron dot diagram to show the formation of the following compound.
Magnesium chloride [ H=1, C=6, Mg=12, Cl=17].
Draw the electron dot diagram and structure of magnesium chloride.
Potassium chloride is an electrovalent compound, while hydrogen chloride is a covalent compound, But, both conduct electricity in their aqueous solutions. Explain.
Generally, the melting and boiling point of carbon compounds are found to be less than _______ °C.
Number of valence electrons in a carbon atom is _______.
Cation is formed when ______.
