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प्रश्न
What is the purpose of the pH scale?
उत्तर
pH scale is used to express the acidic or basic nature of solution.
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संबंधित प्रश्न
Choose the correct answer from the options given below
To increase the pH value of a neutral solution, we should add:
1) an acid
2) an acid salt
3) an alkali
4) a salt
State the inference drawn from the following observations:
On carrying out the flame test with a salt P, a brick red flame was obtained. What is the cation in P?
State the inference drawn from the following observations
pH of liquid R is 10. What kind of substance is R?
M is an element in the form of a 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 the following sentence.
If M is a metal, then the litmus will turn ______.
Solution P has a pH of 13, solution Q has a pH of 6, and a solution R has a pH of 2.
Which solution: Will liberate ammonia from ammonium sulphate on heating?
What is observed when neutral litmus solution is added to sodium hydrogen carbonate solution?
What should be added to Increase the pH value .
Choose the odd one out & give a reason:
M is an element in the form of a 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 the following sentence.
If M is a reactive metal, then ______ will be evolved when M reacts with dilute sulphuric acid.
M is an element in the form of a 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 the following sentence.
If M is a metal, it will form ______ oxide, which will form ______ solution with water.
