Acids, Bases and Salts

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Acids, Bases and Salts

1 / 15

Copper sulphate crystals when heated strongly, lose their water of crystallization to give anhydrous copper sulphate accompanied by a change in color from:

2 / 15

Some fruits like mango, lemon, raw grapes, orange, etc., have a sour taste due to the presence of:

3 / 15

Zinc granules on treating with an acid X, form the zinc sulphate (ZnSO4) salt along with the evolution of a gas Y which burns with a pop sound when brought near to a burning candle. Identify the acid X and gas evolved Y.

4 / 15

The figure given below represents the experiment carried out between conc. sulphuric acid and sodium chloride, which react with each other to form HCl gas.



Blue litmus paper is brought near the mouth of the delivery tube to check the presence of HCl acid but no change is observed in the color of litmus paper because:


5 / 15

Which of the following phenomena occur, when a small amount of acid is added to water?
i. Ionisation
ii. Neutralisation
iii. Dilution
iv. Salt formation

6 / 15

Which of the following indicators turn red in an acidic solution?
i. Phenolphthalein
ii. Litmus
iii. Turmeric
iv. Methyl orange
Choose the correct option:

7 / 15

Dilute acid does not produce carbon dioxide on being treated with:

8 / 15

The sample of soil from a particular place was tested for its pH value. It came out to be 5. Which one of the following should be added to the soil to make it suitable for the plant growth?
i. Calcium chloride
ii. Calcium Hydroxide
iii. Calcium oxide
Choose the correct option:

9 / 15

Identify the products of the following reaction:



10 / 15

An ant’s sting can be treated with …………which will neutralise the effect of the chemical injected by the ant’s sting into our skin.
Choose the correct option from the following to be filled in the blank space:

11 / 15

In the following reaction, identify the salt formed
NH4OH (aq) + H2SO4 (aq) → _____ + 2H2O (l)

12 / 15

Which of the following salt will give acidic solution when dissolved in water?

13 / 15

Bleaching powder is used as a disinfectant for water to:

14 / 15

Which among the following represents the chemical formula for ‘Plaster of Paris’?

15 / 15

Which one of the following salts will dissolve in water to form an alkaline solution?

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