Match column I (different substances) with column II ( pH values) and select the correct option from the given codes Column I Column II P. Tomato juice 1. 7 . 3 - 7 . 5 Q. Gastric juice 2. 6 . 5 - 7 . 5 R. Blood 3. 4 . 5 - 5 . 5 S. Saliva 4. 4 . 0 - 4 . 4 T. Coffee 5. 1 . 0 - 3 . 0

P - 4 , Q - 5 , R - 1 , S - 2 , T - 3

P - 2 , Q - 1 , R - 3 , S - 4 , T - 5

P - 1 , Q - 4 , R - 3 , S - 2 , T - 5

P - 2 , Q - 3 , R - 1 , S - 5 , T - 4

EASY

Earn 100

State the pH of neutral solutions.

Important Questions on Acids, Bases and Salts

EASY

Science>Chemistry>Acids, Bases and Salts>pH of Solution

Cotyledons are also called-

EASY

Science>Chemistry>Acids, Bases and Salts>pH of Solution

The pH of neutral solutions is _____.

MEDIUM

Science>Chemistry>Acids, Bases and Salts>pH of Solution

While demonstrating acid base reactions, MS. Prabha, a science teacher added sodium oxide to

HCl

until it was in excess. Which of the following graphs correctly represents the change in

pH

MEDIUM

Science>Chemistry>Acids, Bases and Salts>pH of Solution

Aqueous solutions of salts are either acidic, basic or neutral. A few common salts are listed as:

I. Silver chloride

II. Ammonium sulphate

III. Sodium nitrate

IV. Sodium phosphate

V. Sodium acetate

Which of the following correctly matches the given salts with the nature of their aqueous solutions?

Brine solution

	Solution with $pH < 7$	Solution with $pH < 7$	Solution with $pH = 7$
(A)	I,III	II,IV	V
(B)	I,II	IV,V	III
(C)	I	IV,II	III,V
(D)	II	I,IV,III	V

MEDIUM

Science>Chemistry>Acids, Bases and Salts>pH of Solution

Certain chemical properties of a substance are given below.

(i) It turns methyl orange, red.

(ii) It turns turmeric paper red.

(iii) It reacts with zinc and a gas is evolved.

(iv) It reacts with solid sodium carbonate to give brisk effervescence.

Which of the above properties are shown by dilute $HCl$ ?

MEDIUM

Science>Chemistry>Acids, Bases and Salts>pH of Solution

Match column I (different substances) with column II ( $pH$ values) and select the correct option from the given codes

Column I			Column II
P.	Tomato juice	1.	$7.3 - 7.5$
Q.	Gastric juice	2.	$6.5 - 7.5$
R.	Blood	3.	$4.5 - 5.5$
S.	Saliva	4.	$4.0 - 4.4$
T.	Coffee	5.	$1.0 - 3.0$

HARD

Science>Chemistry>Acids, Bases and Salts>pH of Solution

Read the given statements and mark the correct option.

Statement 1: A solution of $pH = 1$ has hydrogen ion concentration $3$ times than that of solution of $pH = 3$ .

Statement 2:

pH = - \log \frac{1}{[H_{3} O^{+}]}

EASY

Science>Chemistry>Acids, Bases and Salts>pH of Solution

A milkman added a small pinch of baking soda to fresh milk which had pH close to

6

. As a result, pH of the medium

EASY

Science>Chemistry>Acids, Bases and Salts>pH of Solution

Two solutions, A and B have pH value

2

and

5

respectively, their nature will be as follows

EASY

Science>Chemistry>Acids, Bases and Salts>pH of Solution

What is the range of pH value for an acidic solution?

MEDIUM

Science>Chemistry>Acids, Bases and Salts>pH of Solution

Define pH of the solution. Mention the colour of pH scale for strong acid and strong base.

EASY

Science>Chemistry>Acids, Bases and Salts>pH of Solution

What is the range of pH value for basic solutions?

State the pH of neutral solutions.

Important Questions on Acids, Bases and Salts

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