A student takes about 4 mL of distilled water in four test tubes marked P, Q, R and S
Acids, Bases and Salts (10)A student takes about 4 mL of distilled water in four test tubes marked P, Q, R and S. He then dissolves in each test tube an equal amount of one salt in one test tube, namely sodium sulphate in P, potassium sulphate in Q, calcium sulphate in R and magnesium sulphate in S. After that he adds an equal amount of soap solution in each test tube. On shaking each of these test tubes well, he observes a good amount of lather (foam) in the test tubes marked
- P and Q
- Q and R
- P, Q and S
- P, R and S
Answer
A
Exam Year:
2015
Related Questions
- The name of the salt used to remove permanent hardness of water is
- A student took a small amount of copper oxide in a conical flask
- Name the salt formed when sulphuric acid
- A teacher provided acetic acid, water, lemon juice, aqueous solution of sodium hydrogen carbonate
- The industrial process used for the manufacture of caustic soda
- When you add sodium hydrogen carbonate to acetic acid in a test tube