Acids Bases and...

A substance 'X', upon reaction with hydrochloric acid, produces sodium chloride and water. What is this substance 'X'?

A window-cleaning material contains the hydroxide of 

Which of the following relations is incorrect?

Which of the following contains acetic acid? 

Tartaric acid : Grapes : : _________ : Oranges

Four test tubes marked as W, X, Y and Z contain vinegar, sodium hydroxide, salt solution and limewater, respectively. Which of these test tubes contains acid?

Baking soda turns litmus paper ___________, while it turns China rose indicator ___________.

Which of the following is not a natural indicator?

An element combines with oxygen to form an oxide. This oxide dissolves in water. This aqueous solution changes blue litmus to red. What is the nature of the solution?

Temporary hardness of water is removed by the addition of

Which compound of potassium is used as an ingredient for making soap? 

If a drop of limewater is put on a strip of litmus paper, what type of change will be observed?

What kind of colour change occurs in phenolphthalein solution upon addition of potassium hydroxide?

Orange, lemon juice, and amla are sources of vitamin C. Which acid is present in them?

A first aid handout suggests that wasp sting should be treated with vinegar. What is the chemical nature of wasp sting?