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2020年8月11日 · Phenolphthalein solution turns pink when added to a solution that is basic in nature because it undergoes deprotonation in the basic medium that imparts the pink colour to the solution. Advertisement
2016年9月5日 · actually, “ Phenolphthalein” is a basic indicator which turns into pink or magenta in basic medium whereas it remains colourless in both acidic and neutral medium. now, Let's come to the point ! (i) sodium hydroxide, NaOH is a strong basic in nature. so, when few drops of phenolphthalein is added to sodium hydroxide, solution turns deep pink.
Answer: all of the above Explanation: because methyl orange turns yellow in presence of base , bases turn red litmus blue, bases turn colourless phenolphthalein into pink Ethanol is used as a fuel. C2H5OH + 3O2 = 3H2O + 2CO2 The complete combustion of one mole of ethanol releases 1350KJ of energy.
Answer. Explanation: Ionization is the process that is responsible for the colour change of the compound (Phenolphthalein). Besides, ionization occurs when a molecule loses or gain an electron, which gives the molecule a positive or negative charge. Furthermore, the ionized molecule attracts the opposite change and repels the same charge.
2021年7月20日 · Phenolphthalein It is pink in colour. It turns colourless in an acidic medium. It turns purple in basic medium. Limitations of litmus paper and phenolphthalein: They do not give the numerical pH value. Can differentiate only between a very strong acid and base.
2021年7月23日 · Answer:The answer is blue litmus red because the lime juice contains citric acid in it. Hope the answer is helpful. 1.Which function cannot be attributed to plasma membrane lipids?Recognition of culls having non-self-surface markerMaintaining cell membrane flexibili …
2020年6月28日 · Answer: it will remain colourless. Explanation: Phenolphthalein is an acid-base indicator that is colorless in acidic solutions and pink in basic solutions. If phenolphthalein is added to the original sample of sulfuric acid, the solution is colorless and will remain so while hydrogen ions are in excess. Advertisement.
2020年11月27日 · Phenolphthalein is a weak acid, which is why when it is added in a strong base, it gives pink color and the color gets intense as the PH of the base increases. If a strong acid such as HCL is added in this solution, it with react with base and cause neutralization.
2021年6月14日 · Click here 👆 to get an answer to your question 1. Which of the following is not an acid-base indicator?a. blue litmus b. methyl orange c. phenolphthalein d.… 1. Which of the following is not an acid-base indicato
2024年3月3日 · Phenolphthalein solution turns pink in basic solution and remains colourless in acidic solution. So , A turns it pink, which means A is a basic solution.When B is added, colour disappeared, that is, B is acidic. Again,as A is basic, it turns phenolphthalein to pink .
