MEDIUM
7th CBSE
IMPORTANT
Earn 100

Tartaric acid is one of the components in baking powder. What is its role?

Important Questions on Acids, Bases and Salts

MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 3 - Acids, Bases and Salts>PRACTICE QUESTIONS (COMPETITION WING)>Q 82
Calcium hydroxide is added to soils before applying fertilisers. Justify the purpose.
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 3 - Acids, Bases and Salts>PRACTICE QUESTIONS (COMPETITION WING)>Q 83
What is the role of calcium hydroxide used in making mortar in white washing?
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 3 - Acids, Bases and Salts>PRACTICE QUESTIONS (COMPETITION WING)>Q 84
Why is Chile salt petre used in the manufacture of gunpowder?
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 3 - Acids, Bases and Salts>PRACTICE QUESTIONS (COMPETITION WING)>Q 86
Write formulae and names of the various salts formed when magnesium hydroxide is treated with sulphurous acid.
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 3 - Acids, Bases and Salts>PRACTICE QUESTIONS (COMPETITION WING)>Q 86

X is a metal with eight and two electrons in M and N-shells respectively. X reacts with oxygen to form Y and reacts with hydrochloric acid to form Z which dissolves in water. 

Identify X, Y and Z.

HARD
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 3 - Acids, Bases and Salts>PRACTICE QUESTIONS (COMPETITION WING)>Q 86

X is a metal with eight and two electrons in M and N-shells respectively. X reacts with oxygen to form Y and reacts with hydrochloric acid to form Z which dissolves in water. 

Between Y and Z which one can be used as a desiccant? Give reason.