Single Choice

Which contains strongest H-bond?

A$$O-H...S$$
B$$S-H...O$$
C$$F-H...F$$
Correct Answer
D$$F-H...O$$

Solution

The strongest hydrogen bond is in hydrogen fluoride because the power of hydrogen bond $$\propto$$ electroneativity of atom. Electronegativity $$\propto \dfrac {1}{atomic\ size}$$ So fluorine has maximum electronegativity and minimum atomic size.

SIMILAR QUESTIONS

Chemical Bonding

The electronegative elements between which the H-bond is formed principally in aqueous ammonia are:

Chemical Bonding

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?

Chemical Bonding

$$I$$. 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.

Chemical Bonding

Which of the following dissolves in ionic solvents?

Chemical Bonding

Which of the following compounds shows strongest hydrogen bonding?

Chemical Bonding

Which of the following statements is true about hydrogen bonding?

Chemical Bonding

Name the two conditions which must be satisfied for hydrogen bonding to take place in a molecule.

Chemical Bonding

Write a short note on 'Hydrogen bond'.

Chemical Bonding

What requirement should a molecule fulfil for the formation of a hydrogen bond ?

Chemical Bonding

Fill in the blanks: For hydrogen bonding to occur, hydrogen atom must be linked to .......... atom.

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