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Question
In a silver 2.16 gm of silver is deposited in 10 min. The heat produced in 20 ohm resistor is the same period is nearly
In a silver 2.16 gm of silver is deposited in 10 min. The heat produced in 20 ohm resistor is the same period is nearly
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Solution
The correct option is B 123.2 J
Pure water contains very few ions, so it does not conduct electricity very well. When table salt is dissolved in water, the solution conducts very well, because the solution contains ions. The ions come from the table salt, whose chemical name is sodium chloride. Sodium chloride contains sodium ions, which have a positive charge, and chloride ions, which have a negative charge. Because sodium chloride is made up of ions, it is called an ionic substance.
Not all substances are made up of ions. Some are mode of uncharged particles called molecules. Sugar is such a substance. When sugar is dissolved in water, the solution does not conduct electricity, because there are no ions in the solution. Hence, sugar dissolved in distilled water does not conduct electricity.
Pure water contains very few ions, so it does not conduct electricity very well. When table salt is dissolved in water, the solution conducts very well, because the solution contains ions. The ions come from the table salt, whose chemical name is sodium chloride. Sodium chloride contains sodium ions, which have a positive charge, and chloride ions, which have a negative charge. Because sodium chloride is made up of ions, it is called an ionic substance.
Not all substances are made up of ions. Some are mode of uncharged particles called molecules. Sugar is such a substance. When sugar is dissolved in water, the solution does not conduct electricity, because there are no ions in the solution. Hence, sugar dissolved in distilled water does not conduct electricity.
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