GN6002_AP-SSC_7th_Acids and Bases

What is the name of Acid found in Vinegar?

• Acetic Acid

• Tartaric acid

• Lactic acid

• Formic acid

Select all the properties of Bases

• bitter in taste

• soapy in touch

• turns Red litmus paper to Blue

• Sour in taste

What name is given to those substances which do not change the colour of either red or blue litmus paper?

Match them according to how they occur in nature

• Sodium Hydroxide

• Lime water

• Calcium Hydroxide

• Soap

• Lactic acid

• Curd

• Citric acid

• Orange

Organize these options into the right categories

Groups:

(a) indicator turns red on adding an base

,

(b) indicator turns red on adding an acid

• 
• 

Organize these options based on change of colour of red litmus paper

Groups:

(a) Neutral in nature

,

(b) Base

,

(c) Acid

,

(d) Neutral

• 
• 
• 
• 

Reorder the following according to increasing order of PH value

• Milk

• Vinegar

• Soap

Acid + Base → …………​ (a)   + Water

• Salt
• Sugar
• NaOH