MEDIUM
10th CBSE
IMPORTANT
Earn 100

What is the action of heat on limestone?

Important Questions on Acids, Bases And Salts

MEDIUM
10th CBSE
IMPORTANT
Describe with chemical equation what happens when bleaching powder is left exposed to air containing carbon dioxide.
MEDIUM
10th CBSE
IMPORTANT
Explain giving reason for tartaric acid is an important constituent of baking powder used in making cakes.
MEDIUM
10th CBSE
IMPORTANT
Explain by giving a reason for using baking soda in soda-acid fire extinguisher.
MEDIUM
10th CBSE
IMPORTANT
Doctors use a paste of white substance in water to maintain a fractured bone fixed in its place. Identify this substance and write its chemical formula.
HARD
10th CBSE
IMPORTANT
Name the substance obtained by the action of chlorine on dry slaked lime. Write the chemical equation of the reaction.
MEDIUM
10th CBSE
IMPORTANT
A white powdered solid when added to water produces a hissing sound. Identify the compound. How does this compound react with moist hydrogen chloride gas? Write the chemical equation.
EASY
10th CBSE
IMPORTANT

_____ is a weak acid.

(A) HCl                   (B) H2SO4                    (C) CH3COOH

Enter your correct answer as A, B or C.

EASY
10th CBSE
IMPORTANT
Potassium nitrate has pH value equal to _____.