Indicators are the substances that tell us whether a substance is acidic or basic in nature . They change their colour and are of 2 types
Natural :the indicator that are found in the earth for eg: litmus ;china rose ; turmeric.
Synthetic : the indicators that are manmade. For eg: phenolphtalein ( colourless) ; methyl orange
Natural :the indicator that are found in the earth for eg: litmus ;china rose ; turmeric.
Synthetic : the indicators that are manmade. For eg: phenolphtalein ( colourless) ; methyl orange
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