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WorksheetsAcids bases and salts
Total questions: 20
Worksheet time: 20mins
Products of a neutralization reaction are always:
an acid and a base
an acid and a salt
a salt and water
a salt and a base
Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed.
Yellow in both acid and base
Yellow in acid and red in base
Pink in acid and yellow in base
Red in acid and blue in base
Name the acid present in our stomach.
Sulphuric acid
Hydrochloric acid
Nitric acid
Carbonic acid
Name the acid present in sting of an ant.
Phenolphthalein
Citric acid
Hydrochloric acid
Formic acid
Each cell in our body contains an acid, name that acid.
The decarbonicnucleic acid
The deoxyribonucleic acid
The diprotic acid
Phenolphthalein is a synthetic indicator and its colours in acidic and basic solutions, respectively are:
pink and colourless
blue and red
red and blue
colourless and pink
Name the acid that is present in fats in our body.
Formic acid
Fatty acid
Oxalic acid
Methyl orange
Which of the following set of substances contain acids?
Curd, vinegar
Curd, milk of magnesia
Vinegar, soap
Grapes, lime water
When the soil is too basic, plants do not grow well in it. To improve its quality what must be added to the soil?
Slaked lime
Quick lime
Calamine solution
Organic matter
Which of the following is an acid-base indicator?
Vinegar
Baking soda
Turmeric
Lime water
Methyl orange is an _________
acid
indicator
base
Acetic acid is present in
Lemon
Vinegar
Tomato
Curd
Paheli Is suffering from indigestion due to acidity. In this situation, she is advisable to take:
Curd
Lemon juice
Milk
Milk of magnesia
Lakshmi is writing some statements about bases and indicators. Choose the correct statement and help her.
Tooth decay is caused by the presence of a base.
Indicator is a substance which shows different color in acidic and basic solution.
Sodium Hydroxide turns blue Litmus red.
All the above.
Which of the following statement is or are correct?
Ascorbic acid is present in amla and citrus fruit (lemon and oranges).
Oxalic acid is present in spinach (palak).
Tartaric acid is present in tamarind, unripe grapes and unripe mangoes.
All the above.
What are acids?
Acids are substances that taste sweet, can dissolve metals (depending on the type of acid) and are acidic in nature.
Acids are substances that taste sour, can dissolve metals (depending on the type of acid) and are acidic in nature.
Acids are substances that taste sour, can dissolve metals (depending on the type of acid) and are basic in nature.
Which one of these is an indicator?
Litmus Paper
Orange Juice
Shampoo
Lotion
Where is litmus solution extracted from?
Litmus Paper
Lichen
Oranges
Acids + Bases
