An unknown substance X is poisonous. It also releases some toxic fumes. Which of the following indicators of change should not be used to identify any change in X?

Change in taste

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Change in smell

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Change in state

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Change in colour

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Solution

The correct options are
A Change in taste
B Change in smell
X is poisonous and releases toxic fumes. So, tasting or smelling will kill us. Therefore, we should not use change in taste and change in smell as indicators to identify any change in substance X.

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An unknown substance X is poisonous. It also releases some toxic fumes. Which of the following indicators of change should not be used to identify any change in X?

The correct options are A Change in taste B Change in smellX is poisonous and releases toxic fumes. So, tasting or smelling will kill us. Therefore, we should not use change in taste and change in smell as indicators to identify any change in substance X.

The correct options are
A Change in taste
B Change in smell
X is poisonous and releases toxic fumes. So, tasting or smelling will kill us. Therefore, we should not use change in taste and change in smell as indicators to identify any change in substance X.