A student measures the pH of four liquids: lemon juice (2), soap solution (9), water (7), and vinegar (3). Which is the most basic?
Soap solution (9)
On the pH scale, values below 7 are acidic, 7 is neutral and values above 7 are basic. Higher the pH above 7, the more basic the solution.
Among the four liquids: lemon juice (pH 2) and vinegar (pH 3) are strongly acidic, water (pH 7) is neutral, and soap solution (pH 9) is above 7, so it is basic. Since 9 is the only value above 7, soap solution is the most basic liquid in the list.
Hence, the answer is Soap solution (9).
Similar Questions
Impurities are converted to compounds by adding refining agents in which type of refining method?
What colour does phenolphthalein turn to in a basic solution?
Metals of medium reactivity are generally found in the form of which compounds?
Which of the following is the purest form of iron?
Which of the following is the carbon allotrope having a tetrahedral structure?
A student is comparing samples of sulphur, carbon (Diamond), and bromine. Which property is least likely to be observed in all three?
Which of the following correctly explains why an acid shows acidic behaviour only in aqueous solution?
The study of metals and their properties belongs to which branch of chemistry?
In which combined form is oxygen found in the air besides free O2?
Which statement best describes the electrical conductivity of non-metals in their pure form?
Important Questions from Chemistry
What is deposited on iron in the process of Galvanization?
Which element is used for making solar cells?
Which gas is flushed in a bag of chips to prevent the chips from getting oxidized?
Terylene is a type of:
Who was the first Indian lady scientist who worked with organic chemistry and medicinal plant?
