EASY
7th CBSE
IMPORTANT
Earn 100

Name the acid present in lemon juice. (Lactic acid/ Malic acid/ Citric acid)

75% studentsanswered this correctly

Important Questions on Acids and Bases

EASY
7th CBSE
IMPORTANT
New Science Spark Book 7>Chapter 6 - Acids and Bases>Put on your THINKING CAP!>Q 5
The acid present in an ant bite is _____.
EASY
7th CBSE
IMPORTANT
New Science Spark Book 7>Chapter 6 - Acids and Bases>Put on your THINKING CAP!>Q 5
Name the acid present in car batteries.
EASY
7th CBSE
IMPORTANT
New Science Spark Book 7>Chapter 6 - Acids and Bases>Put on your THINKING CAP!>Q 5
Name the acid present which brings fizz in cold drink.
MEDIUM
7th CBSE
IMPORTANT
New Science Spark Book 7>Chapter 6 - Acids and Bases>Put on your THINKING CAP!>Q 6

Match the following:

(a) pH (i) a product of reaction of an acid with a base 
(b) phenolphthalein (ii) the scale used to measure acidity/basicity 
(c) salt (iii) damaging material it touches 
(d) acid (iv) has a high concentration of H+ ions 
(e) base (v) a type of indicator 
(f) corrosive (vi) a substance which changes colour in acid or base 
(g) indicator (vii) has a high concentration of OH- ions 
MEDIUM
7th CBSE
IMPORTANT
New Science Spark Book 7>Chapter 6 - Acids and Bases>Put on your THINKING CAP!>Q 7
What is a chemical change? Give an example of a chemical reaction.
MEDIUM
7th CBSE
IMPORTANT
New Science Spark Book 7>Chapter 6 - Acids and Bases>Put on your THINKING CAP!>Q 7
What is the rule for a balanced equation? Show with an example, how you can balance a chemical equation.
MEDIUM
7th CBSE
IMPORTANT
New Science Spark Book 7>Chapter 6 - Acids and Bases>Put on your THINKING CAP!>Q 7
Differentiate between acid and base.
MEDIUM
7th CBSE
IMPORTANT
New Science Spark Book 7>Chapter 6 - Acids and Bases>Put on your THINKING CAP!>Q 7
What are antacids? Why are they used?