Question

UPSC Prelims 2021 Question:

Water can dissolve more substances than any other liquid because

1. it is dipolar in natureit is dipolar in nature
2. it is a good conductor of heat
3. it has high value of specific heat
4. it is an oxide of hydrogen

Answer (Detailed Solution Below)

Option 1: it is dipolar in natureit is dipolar in nature

Detailed Solution

Explanation:

Water is called the "universal solvent" because it is capable of dissolving more substances than any other liquid. It is water's chemical composition and physical attributes that make it such an excellent solvent.
Water molecules (H2O) have a polar arrangement of oxygen and hydrogen atoms—one side (hydrogen) has a positive electrical charge and the other side (oxygen) has a negative charge. This allows the water molecule to become attracted to many other different types of molecules.
Water can become so heavily attracted to a different compound, like salt (NaCl), that it can disrupt the attractive forces that hold the sodium and chloride in the salt compound together and, thus, dissolve it.

Therefore, option (1) is the correct answer.

Subject: Science & Technology | Miscellaneous(s&t

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