Chemical Bonding
The electronegative elements between which the H-bond is formed principally in aqueous ammonia are:
Write a short note on 'Hydrogen bond'.
A hydrogen bond is a type of a dipole - dipole interaction
between $$\mathrm{H}$$ and more electro negative atom such as O, F
and N. A hydrogen bond is stronger than Van-der Waal's forces, but weaker
than Covalent bonds or ionic bands. There are two types of
hydrogen bond:
1. Intermolecular hydrogen bond : This type of bond is formed between two or more same or different molecules.
Example : Water, ammonia etc.
2. Intramolecular hydrogen bond: This type of bond is formed
between two different atoms of Same molecule
Example: 0 - nitrophenol
The electronegative elements between which the H-bond is formed principally in aqueous ammonia are:
White crystalline solid (A) reacts with $$H_2$$ to form a highly associated liquid (B) and a monoatomic colorless gas (C). The liquid (B) is used for etching glass. Compound (A) undergoes hydrolysis slowly to form (C), (B) and a diatomic gas (D) whose IE is almost similar to that of (C). (B) forms an addition compound with KF to form (E) which is electrolyzed in the molten state to form a most reactive gas (F) which combines with (C) in a 1: 1 ratio to produce (A). The molecule of compound E contains which of the following types of bonds?
$$I$$. Hydrogen bonds can occur in molecules when hydrogen atoms are bonded to nitrogen, oxygen, fluorine, chlorine or bromine. $$II$$. Electronegativity values for elements found in the upper right corner of the periodic table are higher than values for elements located in other regions of the table.
Which contains strongest H-bond?
Which of the following dissolves in ionic solvents?
Which of the following compounds shows strongest hydrogen bonding?
Which of the following statements is true about hydrogen bonding?
Name the two conditions which must be satisfied for hydrogen bonding to take place in a molecule.
What requirement should a molecule fulfil for the formation of a hydrogen bond ?
Fill in the blanks: For hydrogen bonding to occur, hydrogen atom must be linked to .......... atom.