Contents

Soap is………….in nature. NTS PST (B) -------2021
a) Alkaline                  
b) Acidic
c) Neutral                    
d) Indicator

a

The word acid is derived from a Latin word “acidus” which means………
a) bitter  
b) salty            
c) sweet    
d) sour

d

It is defined as a substance, which provides hydrogen ion H+ in aqueous solution.
a) Alkali                      
b) Acid            
c) Salt                         
d) None of these

b

Solutions in which water is used as a solvent are called………solution.
 PST –P-3---(date not confirm)
a) universal                  
b) homogenous
c) aqueous                   
d) aqueous compound

c

Which of the following is/are the physical property of acids?
a) sour taste, turn blue litmus paper to red
b) aqueous solution of acids conduct electric current
c) turn methyl orange to red    
d) all of theses

d

An acid gives ……..when dissolved in water.
a) Hydrogen ion H+     
b) OH-
c) O+                           
d) none of these

a