Advertisements
Advertisements
प्रश्न
Draw the electron-dot structure of CO2 compound and state the type of bonding.
Advertisements
उत्तर
The electron-dot structure of CO2 is:
Both oxygen and carbon share their two electrons to form a covalent bond in carbon dioxide, CO2.
APPEARS IN
संबंधित प्रश्न
State the reason to explain why covalent compounds "have low melting and boiling points."
How does graphite act as a lubricant?
Give one example, state what are covalent compounds?
Give the formula of the compound that would be formed by the combination of the following pair of elements:
K and H
The number of covalent bonds in pentane (molecular formula C5H12) is:
The molecules having triple bond in them are:
(a) oxygen and ethyne
(b) carbon dioxide and ammonia
(c) methane and ethene
(d) nitrogen and ethyne
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)
Draw an electron dot structure of the following molecule. (Without showing the circle) :
Methanol
Explain the following term with example.
Unsaturated hydrocarbon
Explain the following:
Covalent compounds have low melting and boiling point.
Choose the correct answer from the options given below
Condition favorable for formation of a covalent bond is
(a) Compound X consists of molecules.
Choose the letter corresponding to the correct answer from the choices (a), (b), (c) and (d) given below
In the liquid state, X will
What is the term defined below?
A bond formed by a shared pair of electrons, each bonding atom contributing one electron to the pair.
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?
Element A has 2 electrons in its M shell. Element B has atomic number 7.
Write equations to show how A and B form ions.
Name two compounds that are covalent when taken pure but produce ions when dissolved in water.
The molecular masses of a carbon compound spread over a range of _______.
Which of the following statements are usually correct for carbon compounds? These
- are good conductors of electricity
- are poor conductors of electricity
- have strong forces of attraction between their molecules
- do not have strong forces of attraction between their molecules.
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.
