Chemistry
What do you understand by pH value? Two solution X and Y have pH values of 4 and 10 respectively. Which one of these two will give a pink colour with phenolphthalein indicator.
Acids Bases Salts
81 Likes
Answer
pH of a solution is the negative logarithm to the base 10 of the hydrogen ion concentration expressed in moles per litre.
The solution with pH value 10 [i.e., Y] will give pink colour with phenolphthalein indicator.
Answered By
49 Likes
Related Questions
The skin has and needs natural oils. Why it is advisable to wear gloves while working with strong alkalis?
Complete the table:
Indicator Neutral Acidic Alkaline Litmus Purple ………. ………. Phenolphthalein Colourless ………. ………. M is an element in the form of powder. M burns in oxygen and the product obtained is soluble in water. The solution is tested with litmus. Write down only the word which will correctly complete each of the following sentences.
(a) If M is a metal, then the litmus will turn ……………
(b) If M is a non-metal, then the litmus will turn ……………
(c) If M is a reactive metal, then …………… will be evolved when M reacts with dilute sulphuric acid.
(d) If M is a metal, it will form …………… oxide, which will form …………… solution with water.
(e) If M is a non-metal, it will not conduct electricity unless it is in the form of ……………
Distinguish between a common acid base indicator and a universal indicator.