Advertisements
Advertisements
Question
What type of bonds are present in CO2 molecule? Draw their electron-dot structures.
Advertisements
Solution
Covalent bond is the bond present in O2 as one oxygen atom shares its electrons with another oxygen atom.
The electron-dot structure is:

APPEARS IN
RELATED QUESTIONS
What are covalent compounds?
Elements forming ionic compounds attain noble gas configuration by either gaining or losing electrons from their outermost shells. Give reason to explain why carbon cannot attain noble gas configuration in this manner to form its compounds.
State the type of bonding in the following molecule.
Water
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) :
Methanol
Draw an electron dot structure of the following molecule. (Without showing the circle) :
Water
Give examples for the following:
Two solid covalent compounds.
The electronic configuration of N2 is 2, 5. How many electrons in the outer shell of a N atom are not involved in the formation of a nitrogen molecule?
Fill in the blank from the choice given in bracket.
The compound that does not have a lone pair of electrons is ___________. (Water, Ammonia, carbon tetrachloride)
Which of the following is a common characteristic of a covalent compound?
State the type of bond formed when the combining atom has zero E.N. difference.
Explain the following:
Polar covalent compounds conduct electricity?
Name two compounds that are covalent when taken pure but produce ions when dissolved in water.
Define the functional group and complete the following table.
| S.I. No. | Functional Group | Compound | Formula |
| (1) | ______________ | _______________ |
C2H5OH |
| (2) | _______________ | _______________ | CH3CHO |
Consider the coordination compound, K2[Cu(CN)4]. A coordinate covalent bond exists between:
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 ______.
Cation is formed when ______.
Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of
The table shows the electronic structures of four elements.
| Element | Electronic Structure |
| P | 2, 6 |
| Q | 2, 8, 1 |
| R | 2, 8, 7 |
| S | 2, 8, 8 |
- Identify which element(s) will form covalent bonds with carbon.
- “Carbon reacts with an element in the above table to form several compounds.” Give suitable reason.
Explain dipole (polar) molecule by taking hydrogen chloride as an example.
