Worksheet on Acid Bases And Salt Grade 8

Worksheet 1

Name: ______________________________________________

Std :8

Topic: Acid Bases and Salts

1.      Tick the correct alternative

.1. Acid are _________ to taste

A.     Pungent           B. Bitter           C. Sour

2.      ___________ is an example of Acid.

A.     Vinegar              B. Soap           C. Toothpaste

3.      Acid turns ________

A.     Red Litmus Blue

B.     Blue Litmus Red

C.     Does not affect Litmus Paper

4.      Acids have hydrogen ions in them, hence _________ is acid

     A . NaOH               B. HCl                 C. CaO

5.      Acid are used to prepare _________

A.     Toothpaste            B. Soap             C. Battery

6.      Bases are __________ to touch.

A.     Soapy                B. Rough              C. Hard

7.      Phenolphthalein gives __________ color with bases

A.     Blue                    B. Red                  C. Pink

8.       A base among the following is ________.

A.     Hydrochloric acid       B. sulphuric Acid        C. Sodium hydroxide

9.      ____________ is used to remove grease stains from clothes.

A.     sulphuric Acid        B.  Sodium hydroxide        C. Aluminium hydroxide.

10. An olfactory indicator is ___________

A.     litmus                     B. Eucalyptus                   C.  Phenolphthalein