MEDIUM
7th CBSE
IMPORTANT
Earn 100

Name the source of the red cabbage juice. (White cabbage/ Red cabbage/ Green cabbage)

62.5% studentsanswered this correctly

Important Questions on Acids, Bases and Salts

HARD
7th CBSE
IMPORTANT
Science 7>Chapter 5 - Acids, Bases and Salts>Oral Questions>Q 5
What is the colour of this indicator in (a) Neutral (b) Acidic (c) Basic solution?
Red litmus 
 
HARD
7th CBSE
IMPORTANT
Science 7>Chapter 5 - Acids, Bases and Salts>Oral Questions>Q 5
What is the colour of this indicator in (a) Neutral (b) Acidic (c) Basic solution?
Blue litmus 
 
HARD
7th CBSE
IMPORTANT
Science 7>Chapter 5 - Acids, Bases and Salts>Oral Questions>Q 5
What is the colour of this indicator in (a) Neutral (b) Acidic (c) Basic solution?
Phenolphthalein 
 
HARD
7th CBSE
IMPORTANT
Science 7>Chapter 5 - Acids, Bases and Salts>Oral Questions>Q 5
What is the colour of this indicator in (a) Neutral (b) Acidic (c) Basic solution?
Turmeric solution

MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 5 - Acids, Bases and Salts>Oral Questions>Q 1
What type of reaction is the reaction between an acid and a base/alkali?
HARD
7th CBSE
IMPORTANT
Science 7>Chapter 5 - Acids, Bases and Salts>Oral Questions>Q 2
What are the products formed when an acid reacts with a base completely?
MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 5 - Acids, Bases and Salts>Oral Questions>Q 3
Name the active component of an antacid gel.
HARD
7th CBSE
IMPORTANT
Science 7>Chapter 5 - Acids, Bases and Salts>Oral Questions>Q 4
Which chemical do we apply on the skin at the bee sting bite?