Acids, bases and salts Worksheet-1
Fill in the blanks:
Acids change the colour of litmus solution to ________.
Bases change the colour of litmus solution to ________.
Salts ________the colour of litmus solution.
Substances which change colour or odour in acidic or basic medium are called ________.
The colour of methyl orange in acidic and basic medium is ________ and________.
The colour of phenolphthalein in washing soda solution is ________.
The colour of moist litmus paper in calcium sulphate is ________.
H2CO3 is the formula of________.
The colour of universal indicator is ________ in acidic medium.
The point at which indicator shows colour change is called ________.
What is the chemical name of Plaster of Paris?
Which of the following salts have blue colour?
(a) CuSO4.5H2O (b) CuSO4
The pH of a solution is ________ proportional to the concentration of hydrogen ions in it.
Acidic solutions have ________ of hydrogen ions and ________ hydroxide ions.
The pH of sugar solution will be ________
Do not change
calcium sulphate hemi-hydrate