EASY
10th Chhattisgarh Board
IMPORTANT
Earn 100

Acids "A" and "B" were taken in two beakers. Acid "A" ionises partially in water while acid "B" ionises completely. On this basis, tell: 

What is a weak acid? 

Important Questions on Acids, Bases and Salts

EASY
10th Chhattisgarh Board
IMPORTANT

Acids "A" and "B" were taken in two beakers. Acid "A" ionises partially in water while acid "B" ionises completely. On this basis, tell: 

What is a strong acid? 

MEDIUM
10th Chhattisgarh Board
IMPORTANT

Acids "A" and "B" were taken in two beakers. Acid "A" ionises partially in water while acid "B" ionises completely. On this basis: Give examples of both strong and weak acids. 

HARD
10th Chhattisgarh Board
IMPORTANT
Which gas is usually displaced during reaction between acids and a metal? How will you test this gas? Take the example of magnesium metal to explain. 
HARD
10th Chhattisgarh Board
IMPORTANT
When an eggshell is reacted with dilute hydrochloric acid, foaming is observed and an effervescent gas is produced. Once foaming subsides, a lighted agarbatti is extinguished on placing it inside test tube. Explain the following in the given activity: 
(a) Procedure or steps followed in the activity.
(b) Draw the picture of the experimental set-up.
(c) Write the balanced chemical equation of the reaction taking place.
HARD
10th Chhattisgarh Board
IMPORTANT
The pH of soil in Tikeshweri's field is 4.2. How can she control the pH of her soil so that she gets a good paddy crop?
HARD
10th Chhattisgarh Board
IMPORTANT
What is neutralisation reaction? Explain and give two examples. 
HARD
10th Chhattisgarh Board
IMPORTANT
Samaru added baking soda to raw milk so that its pH changed from 6 to 8. This milk will take longer to change into curd; why? 
HARD
10th Chhattisgarh Board
IMPORTANT
What is a salt? How is the nature of a salt determined? Take NH4NO3 and Na2CO3 as examples and explain.