Advertisements
Advertisements
प्रश्न
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)
Advertisements
उत्तर
The atomic number of oxygen is 8. Its electronic configuration is 2, 6. Hence it has six electrons in its outermost shell.
In an oxygen molecule, one oxygen atom shares its two electrons with another oxygen atom. Hence this type of bonding is called covalent bonding.
APPEARS IN
संबंधित प्रश्न
State the type of bonding in the following molecule.
Water
What type of bonds are present in CH4 molecule? Draw their electron-dot structures.
Fill in the blank in the following sentence:
Two chlorine atoms combine to form a molecule. The bond between them is known as ..........
What is a covalent bond?
What is graphite?
The number of isomers formed by the hydrocarbon with molecular formula C5H12 is:
(a) 2
(b) 5
(c) 3
(d) 4
What happens when methane (natural gas) burns in air? Write the chemical equation of the reaction involved.
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)
Give two example in following case:
Gaseous polar compounds
Explain the following:
Non-polar covalent compounds are insoluble in water.
Explain the bonding in methane molecule using electron dot structure.
An element L consists of molecules.
What type of bonding is present in the particles that make up L?
An element L consists of molecules.
Why L is heated with iron metal, it forms a compound FeL. What chemical term would you use to describe the change undergone by L?
Electrons are getting added to an element Y:
Is Y getting oxidised or reduced?
Draw the electron dot diagram and structure of :
methane
State the type of bond formed when the combining atom has zero E.N. difference.
Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e.g., hydrogen. After the formation of four bonds, carbon attains the electronic configuration of ______.
Mineral acids are stronger acids than carboxylic acids because
- mineral acids are completely ionised
- carboxylic acids are completely ionised
- mineral acids are partially ionised
- carboxylic acids are partially ionised
Statement (A): Covalent compounds are bad conductors of electricity.
Reason (B): Covalent compounds contain charged particles (ions)
