MCQs of Biology – Chemical Bonds

What phrase best describes molecular links?

The bond between sodium and chlorine in the compound sodium chloride ) Na CI) is a/an:

An ionic bond is formed when:

If a pair of shred electrons is more attracted to one nucleus than to the other, they form a/an ________ bond:

Maximum energy is required to break:

What type of energy is present in a covalent bond?

The bond present between two carbohydrates molecule is:

Water molecules are connected by:

Which of the following bonds and properties are correctly matched?

Where are hydrogen bonds important to life?

An acid is a substance that:

Adding acid tend to ________ of solution:

A solution that resists changes in pH is a /an:

Of the following choices the pH of the least acidic solution is:

A carboxyl group is symbolized:

The most abundant compound living cells is:

A water molecule shows:

If electrons in water molecules were equally attracted to hydrogen nuclei and oxygen nuclei, water molecule would be:

In liquid water, sphers of hydration form around:

Hydrolysis is a _________ reaction:

A substance capable of dissolving freely in water is:

Most of the unique properties of water result from the fact that water molecules:

The smallest particle of water is:

Ice float because:

The ability of a watef surface to act as a thin, invisible elastic membrane is due to water;s:

The high heat of vaporization of water accounts for:

Mixture of oil in water forms an emulsion. If a protein is shaken up with such an emulsion:

Atoms share electrons unequally in a/an ________ bond: