FILL IN THE BLANKS
Name the carboxylic acids present in
DEFINE
Acids.
Bases.
Soap
Water of
crystallization.
Alkali.
Weak base.
Strong base
Weak acid.
Strong acid.
Universal
indicator
Indicators.
GIVE SCIENTIFIC REASONS
Sodium
bicarbonate is used in fire extinguishers.
Baking powder is
used in preparation of cakes and breads in bakery industry.
The dilution of
a concentrated acid should always be done by adding concentrated acid to water
and not by adding water to acid.
Acids are stored
in containers made of glass or ceramic.
SHORT NOTES
Indicators (with proper examples)
pH scale with proper examples
Water of crystallisation (with proper examples)
ANSWER THE FOLLOWING
How do metal carbonates reacts with acids?
Explain detail about Hydronium ion
What is universal indicator? Does Mg(OH)2 react with sodium hydroxide? If not, why?
State application (uses) of baking soda
How do acids and bases react with each other? What is the name of the process? What product is obtained out of these reactions?
State the uses
of bleaching powder.
State the
physical properties of bleaching powder.
Write the uses
of washing soda.
Write the
physical properties of washing soda.
Write the
physical properties of baking soda.
Explain the
properties of salt.
What are
olfactory indicators?
What would
happen if (a) a few drops of strongly smelling eucalyptus oil was treated with
vinegar. (b) the rain water mixing with river water was found to be having pH
less than 7. (c) sonal brushes her teeth with the best quality toothpaste
everyday. (d) electrolysis is carried out on sodium chloride solution. (e)
copper sulphate is heated.
Explain the
importance of pH in everyday life.
Name the carboxylic acids present in
DEFINE
Acids.
Bases.
Soap
Water of
crystallization.
Alkali.
Weak base.
Strong base
Weak acid.
Strong acid.
Universal
indicator
Indicators.
GIVE SCIENTIFIC REASONS
Sodium
bicarbonate is used in fire extinguishers.
Baking powder is
used in preparation of cakes and breads in bakery industry.
The dilution of
a concentrated acid should always be done by adding concentrated acid to water
and not by adding water to acid.
Acids are stored
in containers made of glass or ceramic.
SHORT NOTES
Indicators (with proper examples)
pH scale with proper examples
Water of crystallisation (with proper examples)
ANSWER THE FOLLOWING
How do metal carbonates reacts with acids?
Explain detail about Hydronium ion
What is universal indicator? Does Mg(OH)2 react with sodium hydroxide? If not, why?
State application (uses) of baking soda
How do acids and bases react with each other? What is the name of the process? What product is obtained out of these reactions?
