Worksheet for chapter: Acids Bases and Salts is presented below. The worksheets are provided for practice and self evaluation of students of class 7. Solutions are provided at the end of the page.
(1) What are acids and bases?
(2) Give characteristics of litmus.
(3)Why do turmeric spot on clothes turns red when we wash it with detergent?
(4)What is neutralisation?
(5) What is the use of neutralization in soil treatment?
(6)Fill in the blanks:
(i) The colour of phenolphthalein in acidic solution is……..
(ii)………. when added to the acidic solution turns red.
(iii)…… is always evolved in the neutralization.
(7)Write ‘T’ if statement is true and write ‘F’ if statement is false.
(i) Lime Water is basic in nature.
(ii) Shampoo turns blue litmus paper red.
(iii) Water is acidic in nature.
Choose correct answer.
(i) basic in nature.
(ii) acidic in nature.
(iii) neutral in nature.
(9)China Rose is a/an
(10)In neutralization reaction a new substance is formed. This is