Isolectric point of gelatin solution is `4.7.` The correct option is:

For an ideal solution, the correct option is:

For an ideal solution, the correct option is:

Mark correct option or options :

On mixing aqueous solution of copper sulphate with aqueous solution of ammonia a deep blue coloured solution is obtained. Choose the correct options :

On mixing aqueous solution of copper sulphates with aqueous solution of ammonia a deep blue coloured solution is obtained. Choose the correct options :

The pH of three solutions A, B, C is 6, 4, 8 receptivity which of the following is the correct option?