EASY
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What is the formula of the chemical present in lemon juice?

Important Questions on Acids, Bases and Salts

HARD
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators

The salt solution which does not react with ammonium hydroxide is:

MEDIUM
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
The colour of Methyl orange in alkali solutions is _____ .
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators

Which of the following is not an olfactory indicator?

MEDIUM
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
Which of the following is a dibasic acid?
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
What is the action of litmus on dry ammonia gas and the solution of ammonia gas in water?
EASY
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
Two solutions X and Y are tested with universal indicator. Solution X turns orange whereas solution Y turns red. Which of the solutions is a stronger acid?
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
How does a universal indicator work?
EASY
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators

What is a universal indicator? For what purpose is it used?

HARD
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
Why does dry HCl gas not change the colour of the dry litmus paper?
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
What will you observe when blue litmus is introduced into a solution of ferric chloride.
EASY
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
Solution A turns universal indicator blue to purple, whereas solution B turns universal indicator orange to red. What will be the action of solution B on litmus?
EASY
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
A beaker of concentrated hydrochloric acid has a pH of 1. What colour will full range universal indicator turn if it is added to this beaker? Is it a strong or a weak acid?
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
What will you observe when methyl orange drop is added to dilute hydrochloric acid?
EASY
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
Two solutions A and B have pH values of 3.0 and 9.5 respectively. Which of these will turn litmus solution from blue to red and which will turn phenolphthalein from colourless to pink?
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
Dry HCl gas does not change the colour of dry blue litmus paper, why?
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
Solution A turns universal indicator blue to purple, whereas solution B turns universal indicator orange to red. What will be the action of solution A on litmus?
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
What will you observe when red litmus paper is introduced into a solution of sodium carbonate?
EASY
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
What is an olfactory indicator? Name two olfactory indicators. What is the effect of adding sodium hydroxide solution to these olfactory indicators?
EASY
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
What will be the colour of litmus in an aqueous solution of ammonium chloride salt?
MEDIUM
Science>Chemistry>Acids, Bases and Salts>Acid-Base Indicators
What are olfactory indicators? Explain.