Table of Contents
- 1 Why does no have a double bond?
- 2 How will you detect the presence of double bond in a hydrocarbon?
- 3 Which compound does not contain double bond or triple bond?
- 4 Which of the molecule has no double or triple covalent bond?
- 5 What causes double bonds?
- 6 How many bonds can iodine form with BR?
- 7 Why do hydrocarbons have double and triple bonds?
Why does no have a double bond?
For NO, the skeleton structure is N-O. You have 14 valence electrons in your trial structure. With three electrons, we can make only one double bond with one electron left over: N=O. With an odd number of electrons (11), we cannot give every atom an octet.
How will you detect the presence of double bond in a hydrocarbon?
To test the presence of a double bond in a molecule, bromine water (Br2) containing CCl4(tetrachloromethane) can be added to an organic/unsaturated compound. If the orange color of bromine discharges or disappears, then it contains a double bond.
What makes up a double bond?
In chemistry, a double bond is a covalent bond between two atoms involving four bonding electrons as opposed to two in a single bond. Double bonds occur most commonly between two carbon atoms, for example in alkenes.
What elements Cannot have double bonds?
The double bond rule states that chemical elements with a principal quantum number greater than 2 for their valence electrons (period 3 elements and lower) tend not to form multiple bonds (e.g. double bonds and triple bonds).
Which compound does not contain double bond or triple bond?
Hence, ethane is the only compund that does not contain multiple bonds.
Which of the molecule has no double or triple covalent bond?
Nitrogen possesses triple bond and oxygen possesses double bond.
How do you know if a hydrocarbon has a double bond What is the test for identifying its unsaturation?
In organic chemistry, the bromine test is a qualitative test for the presence of unsaturation (carbon-to-carbon double or triple bonds), phenols and anilines. The iodine value is a way to determine the presence of unsaturation quantitatively. …
Why do some elements form double and triple bonds during bonding?
Why do some elements form double and triple bonds during bonding? The elements form multiple bonds because they need a total of eight atoms to look like a noble gas. A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.
What causes double bonds?
A double bond is formed when two atoms share two pairs of electrons. The sharing of two electrons is known as a covalent bond. Double bonds are both stronger and shorter than single bonds.
How many bonds can iodine form with BR?
Iodine’s normal valence state is 1 bond and three lone pairs. If you break up one lone pair, you will have two more electrons to make two more bonds. So Iodine can form three bonds, one to each Br and still have two lone pairs to break up to make even more bonds.
Why doesn’t BR have more than one bond?
The Br does not need more than one bond to be happy. Sulfur, the central atom has a normal valence state just like Oxygen, of two bonds and two lone pairs. But if you try to use two bonds on every oxygen, you will have 8 bonds on the sulfur. A sulfur with 8 bonds on it would have a negative two charge.
Can unsaturated compounds have double bonds and triple bonds?
Unsaturated compounds can have double bonds and triple bonds as well. For example, alkenes contain double bonds and alkynes contain triple bonds.
Why do hydrocarbons have double and triple bonds?
Hydrocarbons containing double and triple bonds on other hand, have the ability to still accept additional hydrogen / other atoms without replacing any of the existing atoms. The double/ triple bond can be cleaved and hydrogen/ other atom can be added in its place without replacing the existing one.