Advertisements
Advertisements
प्रश्न
State whether the following statement is true or false:
Diamond and graphite are the covalent compounds of carbon element (C)
उत्तर
False
Diamond and graphite are the allotropic forms of carbon (C) with covalent bonding between different carbon atoms.
APPEARS IN
संबंधित प्रश्न
What type of chemical bond is formed between carbon and bromine?
What type of bonds are present in CO2 molecule? Draw their electron-dot structures.
Why is graphite used for making dry cell electrodes but diamond is not?
Give the formula of the compound that would be formed by the combination of the following pair of elements:
Al and Cl2
What type of bonding would you expect between Carbon and Chlorine?
Complete the following:
In case of non-polar covalent bond, the covalent bond is formed in the ______ of atoms and shared electrons are ______ distributed. (corner, middle, equally, unequally)
Elements forming ionic compounds attain noble gas electronic configuration by either gaining or losing electrons from their valence shells. Explain giving reason why carbon cannot attain such a configuration in this manner to form its compounds. Name the type of bonds formed in ionic compounds and in the compounds formed by carbon. Also explain the reason why carbon compounds are generally poor conductors of electricity.
Draw an electron dot structure of the following molecule. (Without showing the circle) :
Ethene
Draw an electron dot structure of the following molecule. (Without showing the circle) :
Water
Draw electron - dot structure and structural formula of methane.
Fill in the blank with correct word from the bracket.
Melting and boiling points of covalent compounds are generally ______ (low, high).
The molecule which contains a triple covalent bond is ______.
State the type of bond formed when the combining atom has small E.N. difference.
Element A has 2 electrons in its M shell. Element B has atomic number 7.
If the compound formed between A and B is melted and an electric current is passed through the molten compound, the element A will be obtained at the ______ and B at the ______ of the electrolytic cell.
Name two compounds that are covalent when taken pure but produce ions when dissolved in water.
Potassium (Atomic No. 19) and chlorine (Atomic No. 17) react to form a compound. On the basis of electronic concept, explain
(i) oxidation
(ii) reduction
(iii)oxidising agent
(iv)reducing agent
Name two carbon compounds used in day-to-day life.
The number of electrons in the valence shell of a carbon atom is 4.
Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of
