Commonly Used Acids and Bases

Q.

When a few drops of methyl orange indicator are added to sodium hydroxide solution, the colour acquired by it is :

1. No specific colour

2. yellow

3. pink

4. red

Q.

Indicator that turns red or pink in acidic medium is ______________________.

Q. From the given options select the one with the highest pH value.

1. $\text{HCl}$
2. ${\text{H}}_2{\text{SO}}_4$
3. ${\text{H}}_2\text{O}$
4. $\text{NaOH}$

Q. Which of the following is not an example of neutralisation reaction?

Q. Statement 1: Aluminium hydroxide is a tri-acidic base.
Statement 2: Tri-acidic base furnishes more hydroxyl ions than a monoacidic base in an aqueous solution.

1. Only statement 1 is correct.
2. Both statement 1 and statement 2 are incorrect.
3. Only statement 2 is correct.
4. Both statement 1 and statement 2 are correct.

Q. Which of the following compounds show sublimation?

1. $N{H}_{4}Cl$
2. $BaS{O}_4$
3. $CaC{O}_3$
4. $CaHP{O}_3$

Q. Concentrated acids and bases are corrosive in nature.

1. True
2. False

Q. Milk contains citric acid in it.

1. True
2. False

Q.

Out of the following which one is most basic?

1. pH= 8.2

2. pH= 11.5

3. pH= 10.6

4. pH= 9.3