With the help of following equations answer the given question. (i) HCl aq + NaOH aq → NaCl aq + H 2 O l (ii) H 2 SO 4 aq + 2 NaOH aq → Na 2 SO 4 aq + 2 H 2 O l (iii) H 3 PO 4 aq + 3 NaOH aq → Na 3 PO 4 aq + 3 H 2 O l (a) Which acid is diprotic acid and which one is triprotic?

An acid which gives out only three hydrogen ions on ionization in a solution is called triprotic acid and an acid which gives two hydrogen ions on ionization in a solution is known as diprotic acid. From the given equations we can see that sulphuric acid gives two hydrogen ions and phosphoric acid gives three hydrogen ions. So, sulphuric acid is diprotic and phosphoric acid is triprotic acid.

With the help of following equations answer the given question. (i) HCl aq + NaOH aq → NaCl aq + H 2 O l (ii) H 2 SO 4 aq + 2 NaOH aq → Na 2 SO 4 aq + 2 H 2 O l (iii) H 3 PO 4 aq + 3 NaOH aq → Na 3 PO 4 aq + 3 H 2 O l Which acid is diprotic acid and which one is triprotic? Is sulphuric acid diprotic?

An acid which gives out only three hydrogen ions on ionization in a solution is called triprotic acid and an acid which gives two hydrogen ions on ionization in a solution is known as diprotic acid. From the given equations we can see that sulphuric acid gives two hydrogen ions and phosphoric acid gives three hydrogen ions. So, sulphuric acid is diprotic and phosphoric acid is triprotic acid.

E M B I B E

Secondary Chemistry Class X>Chapter 2 - Acids, Bases and Salts>FORMATIVE ASSESSMENT QUESTIONS FOR CCE>Q 6

EASY

10th CBSE

IMPORTANT

Earn 100

Write the formula for the hydronium ion?

Important Questions on Acids, Bases and Salts

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 2 - Acids, Bases and Salts>FORMATIVE ASSESSMENT QUESTIONS FOR CCE>Q 7

What do you understand by the term 'acetic acid

{CH}_{3} COOH

is a monoprotic acid'?

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 2 - Acids, Bases and Salts>FORMATIVE ASSESSMENT QUESTIONS FOR CCE>Q 8

In which solution is the smell of onion extract not detectable

HCl

or

NaOH

.

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 2 - Acids, Bases and Salts>FORMATIVE ASSESSMENT QUESTIONS FOR CCE>Q 9

An element combines with oxygen to form an oxide. This oxide dissolves in water. This aqueous solution changes blue litmus to red. Write the nature of the aqueous solution (alkaline or acidic).

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 2 - Acids, Bases and Salts>FORMATIVE ASSESSMENT QUESTIONS FOR CCE>Q 9

An element combines with oxygen to form an oxide. This oxide dissolves in water. This aqueous solution changes blue litmus to red. Write the nature of the element (metal or non-metal).

EASY

10th CBSE

IMPORTANT

Secondary Chemistry Class X>Chapter 2 - Acids, Bases and Salts>FORMATIVE ASSESSMENT QUESTIONS FOR CCE>Q 10

With the help of following equations answer the given question.

(i) $HCl (aq) + NaOH (aq) \to NaCl (aq) + H_{2} O (l)$