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प्रश्न
Give one example of a molecule containing a double covalent bond
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उत्तर
A molecule containing a double covalent bond: oxygen molecule 
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संबंधित प्रश्न
What would be the electron dot structure of carbon dioxide which has the formula CO2?
Explain why covalent compounds have generally high melting points?
Draw the electron-dot structure of N2 and state the type of bonding.
The atomic numbers of four elements P, Q, R and S are 6, 10, 12 and 17 respectively. Which two elements can combine to form a covalent compound?
(a) P and R
(b) Q and S
(c) P and S
(d) R and S
A covalent molecule having a double bond between its atoms is:
(a) Hydrogen
(b) Oxygen
(c) water
(d) ammonia
One of the following is not an allotrope of carbon. This is:
(a) diamond
(b) graphite
(c) cumene
(d) buckministerfullerene
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.
Give the formulae of the chlorides of the elements X and Y having atomic numbers of 3 and 6 respectively. Will the properties of the two chlorides be similar or different? Explain your answer.
State the type of bonding in the following molecule.
Water
The carbon compound is used in daily life is ______.
Explain the following:
Non-polar covalent compounds are insoluble in water.
Explain the following:
Polar covalent compounds are good conductors of electricity.
Choose the correct answer from the options given below
Condition favorable for formation of a covalent bond is
What is the term defined below?
A bond formed by a shared pair of electrons, each bonding atom contributing one electron to the pair.
The following table shows the electronic configuration of the elements W, X, Y, Z:
|
Element |
W |
X |
Y |
Z |
|
Electronic |
2,8,1 |
2,8,7 |
2,5 |
1 |
Answer the following questions based on the table above:
What type of bond is formed between Y and Z.
Electrons are getting added to an element Y:
which electrode will Y migrate to during the process of electrolysis?
Generally, the melting and boiling point of carbon compounds are found to be less than _______ °C.
An element A is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in air. It reacts vigorously with water. Identify the element from the following
Explain dipole (polar) molecule by taking hydrogen chloride as an example.
