Advertisements
Advertisements
Question
What type of chemical bond is present in chlorine molecule? Explain your answer.
Solution
In a chlorine molecule, the atoms bonded by a covalent bond as a chlorine atom needs one electron to complete its octet and shares one electron with another chlorine atom.
APPEARS IN
RELATED QUESTIONS
Explain why carbon forms compounds mainly by covalent bond.
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 reason why carbon can neither form \[\ce{C^4+}\] cations nor \[\ce{C^4−}\] anions but forms covalent compound.
State the reason to explain why covalent compounds "have low melting and boiling points."
Give two general properties of ionic compounds and two those of covalent compounds.
Why is graphite a good conductor of electricity but diamond is a non-conductor of electricity?
The organic compound prepared by Wohler from an inorganic compound called ammonium cyanate was:
(a) glucose
(b) urea
(c) uric acid
(d) vinegar
The electronic configurations of three elements X, Y and Z are as follows:
X | 2, 4 |
Y | 2, 7 |
Z | 2, 1 |
(a) Which two elements will combine to form an ionic compound?
(b) Which two elements will react to form a covalent compound?
Give reasons for your choice.
A solid element X has four electrons in the outermost shell of its atom. An allotrope Y of this element is used as a dry lubricant in machinery and also in making pencil leads.
(a) What is element X?
(b) Name the allotrope Y.
(c) State whether allotrope Y is a good conductor or non-conductor of electricity.
(d) Name one use of allotrope Y (other than lubrication and pencil leads)
(e) Name two other allotropes of element X.
Draw an electron dot structure of the following molecule. (Without showing the circle) :
Methanol
Choose the correct answer from the options given below
Which one is not example of polar covalent compound?
In the formation of electrovalent compounds, electrons are transferred from one element to another. How are electrons involved in the formation of a covalent compound?
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 with correct word from the bracket.
Melting and boiling points of covalent compounds are generally ______ (low, high).
Electrons are getting added to an element Y:
Is Y getting oxidised or reduced?
Name two compounds that are covalent when taken pure but produce ions when dissolved in water.
When ethyl alcohol and acetic acid are mixed, the resulting ester has a chemical formula ______.
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 ______.
It is observed that covalent compounds are had conductors of electricity. Give reason.