Q4.The observation made during an experiment are recorded below: SOLUTION A B C D Blue Litmus Reddish Deep Red No Change Mauve Red Litmus No change No change Blue Mauve (a) Which of these is : (i)Strongly acidic (ii)Weakly acidic (iii) Neutral (iv)Basic (b) Which of the two solutions will react to illustrate the neutralization reaction?
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Litmus paper is a natural indicator which changes red in acids and blue in bases. Compounds that do not affect the color of litmus papers are described as neutral.When litmus paper turns red then the substance is acid.
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LITMUS PAPER OF BLUE OR RED, ANY COLOUR IS A NATURAL INDICATOR. WHENEVER IT REACTS WITH ACID, IT TURNS IT COLOUR IN RED AND WHENEVER IT REACTS WITH BASE IT TURNS IT COLOUR IN BLUE AND IF NO CHANGE IS THERE IT IS SAID TO BE A NEUTRAL.
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