L-3 Acids, Bases and Salts

Question 1

Compounds can be classified into three distinct classes

Answer 1

Acids, Bases and Salts

Question 2

Why are all acids and bases not tasted it touched

Answer 2

as some of them harm the body

Question 3

Acids and bases are differentiated by

Answer 3

indicators and their characteristic chemical reactions

Question 4

What is an indicator

Answer 4

a chemical which indicates by means of sharp change in colour, nature of solution

Question 5

Define acids

Answer 5

compounds which contain one or more hydrogen atoms and when dissolved in water, produce hydronium ions the only positively charged ions

Question 6

______ is common in all acids

Answer 6

Hydrogen

Question 7

Hydrated hydrogen ion which exists in solutions of acids

Answer 7

hydronium ion

Question 8

Classification of acids

Answer 8

Based on their sources
Based on their molecular composition
depending on their strength
depending on their basicity

Question 9

Acids based on their sourced

Answer 9

Organic acids
Inorganic acids

Question 10

Define organic acids

Answer 10

Obtained usually from plants
Also contains carbon along with hydrogen

Question 11

Why are organic acids also called weak acids

Answer 11

because they do not ionise completely in solution
so they contain ions as well as molecules

Question 12

Define inorganic acids

Answer 12

Usually obtained from minerals
do not contain carbon
exception carbonic acid

Question 13

Why are inorganic acids also called strong acids

Answer 13

they ionise completely in solution, producing a high concentration of hydronium ions
contain only ions

Question 14

why is carbonic acid used in soft drinks

Answer 14

non corrosive, weak mineral acid