WHAT OBSERVATION CAN BE MADE WHEN DILUTE HCLIS MADE TO REACT WITH MOIST BLUE LITMUS PAPER?
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Zinc with dilute sulphuric acid d. ... 3, Take a moist red litmus paper and bring it in contact with the white ash of ... Magnesium oxide changes the colour of red litmus paper to blue. ... Observations: .... dil. HCl to the precipitate in the conical flask.
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