Acids and Bases

The term acid is derived from the Latin word ‘acidus’ which means
1. bitter
2. Sour
3. salty
4. sweet
The chemical compounds which have sour taste are called
1. Acid
2. Bases
3. Both a and b
4. All the above
Acids are
1. tastless
2. odourless
3. Colourless
4. all the above
Acids are ___________ in water
1. soluble
2. Insoluble
3. Both a and b
4. None of the above
Solutions of acids conduct
DNA
RNA
Soaps are slippery due to the presence of
1. Acid
2. Base
3. Both a and b
4. None of the above
Bases are ___________ in taste
1. bitter
2. sour
3. salty
4. sweet
The chemical substances that release hydroxide ions when dissolved in water are called
1. Acid
2. Base
3. Both a and b
4. None of the above
Bases also conduct electricity in aqueous solution.
1. True
2. False
Acids are corrosive in nature. When come in contact with the skin frequently they form painful blisters.
1. True
2. False
sodium hydroxide is used to make bathing soaps.
1. True
2. False
Sodium hydroxide is used to make washing soaps
1. True
2. False
Potassium hydroxide is used for white washing.
1. True
2. False
When neutrality is achieved between two different chemical substances with different chemical properties through a reaction then it is called
1. Neutralization
2. distillation
3. sterilization
4. None
Hibiscus flower used for
1. presentation
2. dissolving
3. Indicator
4. None
___________ is a colourlesscompound
1. Phenolphthalein
2. Methyl orange
3. both a and b
4. None
____________ is the most common indicatorz used in the laboratories.
1. Hibiscus flower indicator
2. litmus
3. Beet root juice indicator
4. All the above
It is colourless in acidic solution but turns pink in basic solution.
1. Methyl orange
2. Phenolphthalein
3. Litmus
4. None
It turns red in acidic solution and yellow in basic solution.
1. Methyl orange
2. Phenolphthalein
3. Litmus
4. None
___________acid and _______ acid are used as food preservatives.
1. Acetic
2. benzonic
3. Both a and b
4. None
_____ acids and _______ acids are the two types of acids
1. Natural
2. organic
3. Both a and b
4. None
_______acid is known as king of chemicals.
1. Sulphuric
2. hydrochloric
3. both a and b
4. none
______ are the substances that give hydroxide ions (OH–) on dissolving in water
1. Acids
2. Bases
3. None
______ produce H+ ions when they aredissolved in water
1. Acids
2. Bases
3. None
Bases which are soluble in water are called
1. Acid
2. Bases
3. both a and b
4. Alkalies
A substance which contains one or more replaceable hydrogen atoms.
1. Acid
2. Alkali
3. Base
4. Indicator
Water soluble bases
1. Acid
2. Alkali
3. Base
4. Indicator
A substance that releases hydroxide ions when dissolved in water
1. Acid
2. Alkali
3. Base
4. Indicator
Chemical substance which indicates the acidic or basic nature of a solution by suitable colour change.
1. Acid
2. Alkali
3. Base
4. Indicator
Acids produced artificially in industries
1. Inorganic acid
2. Natural indicators
3. Neutralisation reaction
4. Organic acid
Substances obtained from plants and used as indicators.
1. Inorganic acid
2. Natural indicators
3. Neutralisation reaction
4. Organic acid
Reaction between an acid and a base which produces water and salt.
1. Inorganic acid
2. Natural indicators
3. Neutralisation reaction
4. Organic acid
Acids which occur naturally in fruits and vegetables.
1. Inorganic acid
2. Natural indicators
3. Neutralisation reaction
4. Organic acid
Benzoic acids are used for ___________
1. Food preservatives
2. types of acids
3. Both a and b
4. None
In acidic solutions blue litmus changes into ______ colour.
1. blue
2. green
3. red
4. white
In basic solutions red litmus changes into ______ colour.
1. blue
2. green
3. red
4. white
Magnesium hydroxides are used for treating_______
1. acidity
2. head pain
3. teeth decay
4. None of these
Acid mixed with base forms
1. salt and water
2. salt
3. water
4. No reaction

Acids and Bases

Quiz