Question

• Tick mark
1. At what pH v
(A) 6 (B) 2
mark the correct alternative in the box with pen :
what pH value is the solution considered to be acidic?
6 (B) 7 (C) 10 (D) 14
2. What is ti
what is the colour of a universal indicator in neutral solution?
ured (B) blue (C) greenish yellow (D) green
Which of the following solutions has pH more than 7?
(A) Pure water (B) NaOH solution
(C) HCl solution (D) Lemon juice
4. Which of the following solutions has pH 7?
(A) Pure water
(B) HNO, solution in water
(C) Na, Co, solution in water (D) HCl solution in water
5. Which of the following is a synthetic indicator ?
(A) Phenolphthalein
(B) Beet
(C) Litmus
(D) Turmeric
6. The mixture of several indicators is known by which of the following
indicators?
(A) universal indicator (B) olfactory indicator
(C) natural indicator
(D) synthetic indicator​

Answer 1

Answer:

2. green

3. NaOH solution

4.pure water

5. phenolphthalein

6. universal indicater