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Question
State whether true or false :
A chemical change refers to a change which is permanent in nature and results into the formation of new substance which is different from the original substance.
State whether true or false :
A chemical change refers to a change which is permanent in nature and results into the formation of new substance which is different from the original substance.
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Solution
The correct option is A True
A physical change in a substance doesn't change what the substance is. In a chemical change where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed.Physical changes can be reversed, chemical changes cannot be reversed with the substance changed back without extraordinary means, if at all. For example, a cup of water can be frozen when cooled and then can be returned to a liquid form when heated.\Hence statement is true.
A physical change in a substance doesn't change what the substance is. In a chemical change where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed.Physical changes can be reversed, chemical changes cannot be reversed with the substance changed back without extraordinary means, if at all. For example, a cup of water can be frozen when cooled and then can be returned to a liquid form when heated.\
Hence statement is true.
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