You have been provided with three test tubes one of them contains distilled water and the other two contain an acidic solution and a basic soution respectively . If you are given only red litmus paper, how will you identify the contents of each test tube?

There are three cans one of them holds exactly 10 litres of milk and useful the other two can hold a 7 litres and 3 litres respectively then no graduation mark on the cans customer ask for 5 litres of milk how would you give him the amount he ask he would not be satisfied by estimates​.

If you are provided with two tubes (A and B). Where one is narrow and the other is relatively wider and if both are immersed in a beaker containing water as shown in the figure. Why does B show higher water rise than A?

You have two solutions a and b the ph of solution a is 6 and ph of solution b is 8. which solution has more hydrogen ion concentration? Which of this is acidic and which one is basic?