Acids Bases and Salts Class 10 MCQ Online Test. We covered all the Acids Bases and Salts Class 10 MCQ Online Test in this post for free so that you can practice well for the exam.
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Mock Test on Acids Bases and Salts for Class 10 Students
Which of the following is not correct about baking soda?
(a) It is used in the soda-acid fire extinguisher.
(b) It is added for faster cooking.
(c) It is a corrosive base.
(d) It neutralises excess acid in the stomach.
Option c – It is a corrosive base
Which one of the following statements is correct?
(a) All bases are alkali.
(b) None of the bases is alkali.
(c) There are no more bases except the alkalis.
(d) All alkalis are bases but all bases are not alkalis.
Option d – All alkalis are bases but all bases are not alkalis
Which of the following solutions will not change the colour of blue litmus paper to red? I. Acid solution II. Base solution III. Common salt solution Select the correct answer using the codes given below.
(a) I and III
(b) II and III
(c) Only I
(d) Only II
Option b – II and III
Which of the following statement(s) is/are correct? I. Metallic oxides are said to be basic oxides. II. Non-metallic oxides are basic in nature. III. All acids have similar chemical properties. Codes
(a) Only I and III
(b) Only II and III
(c) Only II
(d) All statements are correct
Option a – Only I and III
Which one among the following is not a property of salt?
(a) Salts have ordered packing arrangements called lattices.
(b) Salts have low melting points but high boiling points.
(c) Salts are brittle.
(d) Salts conduct electricity when dissolved in water or even in a motion state.
Option b – Salts have low melting points but high boiling points
An acid turns blue litmus red and the base turns red litmus blue. A group of students in a laboratory testing a solution with a red litmus paper which remained red with no change. This result shows that the solution is
(a) not a base.
(b) not an acid.
(c) Neither acid nor a base
(d) Both acid and base
Option a – not a base
Which compound, when dissolved in water, conducts electricity and forms a basic solution?
(a) HCI
(b) CH3COOH
(c) CH3OH
(d) NaOH
Option d – NaOH
The indicator used in the titration of a strong acid and a strong basis
(a) Phenolphthalein
(b) Methyl orange
(c) Alizarin yellow
(d) Red litmus
Option a – Phenolphthalein
Which one among the following stages are suitable indicator when a solution of sodium carbonate is mixed with sulphuric acid?
(a) Methylene blue
(b) Methyl red
(c) Phenolphthalein
(d) Methyl orange
Option c – Phenolphthalein
Suppose you have four test tubes labelled as ‘A’, ‘B’, ‘C’ and ‘D’. ‘A’ contains plain water, ‘B’ contains the solution of an alkali, ‘C’ contains the solution of an acid, and ‘D’ contains the solution of sodium chloride. Which one of these solutions will turn the phenolphthalein solution pink?
(a) Solution ‘A’
(b) Solution ‘B’
(c) Solution ‘C’
(d) Solution ‘D’
Option b – Solution ‘B’
Consider the following statements. I. Acids are sour in taste and change the colour of blue litmus to red. II. Bases are bitter and change the colour of red litmus to blue. III. Litmus is a natural indicator. Which of the statements given above is/are correct?
(a) I and I
(b) I and III
(c) II and III
(d) I, II and III
Option d – I, II and III
Which of the following is correct regarding buffer solution?
(a) It contains a weak acid and its conjugate base.
(b) It contains a weak base and its conjugate acid.
(c) It shows little change in pH on adding a small amount of acid or base.
(d) None of the above
Option c – It shows little change in pH on adding a small amount of acid or base
Which of the following has a pH value of 7?
(a) Pure Water
(b) Neutral solution
(c) Both (a) and (b)
(d) Acidic solution
Option c – Both (a) and (b)
The pH of water at 25° C is 7. When it is heated to 100° C, the pH of the water
(a) increases
(b) decreases
(c) remains the same
(d) decreases up to 50° C and then increases
Option b – decreases
The pH of fresh groundwater slightly decreases upon exposure to air because
(a) carbon dioxide from air is dissolved in the water.
(b) oxygen from the air is dissolved in the water.
(c) the dissolved carbon dioxide of the groundwater escapes into the air.
(d) the dissolved oxygen of the groundwater escapes into the air.
Option a – carbon dioxide from air is dissolved in the water
The pH value of water is
(a) 4
(b) 7
(c) 12
(d) 18
Option b – 7
Statement I Addition of water to an aqueous solution of HCI decreases the pH. Statement II Addition of water suppresses the ionisation of HCI. Codes
(a) Both the statements are individually true and statement II is the correct explanation of statement I.
(b) Both the statements are individually true but statement II is not the correct explanation of statement I
(c) Statement I is true, but statement II is false.
(d) Statement I is false, but statement II is true.
Option c – Statement I is true, but statement II is false
Consider the following statements. I. Limestone, chalk and marble are different forms of calcium carbonate. II. When the pH of rainwater is less than 5.6, it is called acid rain. III. The human body works within the pH range of 7.0 to 7.8. Which of the statements given above is correct?
(a) I and II
(b) I and Ill
(c) II and III
(d) I, II and III
Option d – I, II and III
Antacids are
(a) base
(b) acid
(c) salt
(d) buffer
Option a – base
Which one of the following salts when dissolved in water makes the solution basic?
(a) Sodium chloride
(b) Copper sulphate
(c) Ferric chloride
(d) Sodium acetate
Option d – Sodium acetate
Which of the following properties is true for toothpaste?
(a) It is acidic.
(b) It is neutral.
(c) It is basic.
(d) It is made up of Calcium phosphate, the material of tooth enamel.
Option c – It is basic
When hard water is evaporated completely the white solid remains in the container. It may be due to the presence of I. Carbonates of Ca and Mg. II. Sulphates of Ca and Mg. III. Chlorides of Ca and Mg. Select the correct answer using the codes given below.
(a) I and II
(b) I, II and III
(c) Only III
(d) I and III
Option d – I and III
The desirable range of pH for drinking water is
(a) 6.5 to 8.5
(b) 5.0 to 6.5
(c) 6.5 to 7.0
(d) 7.0 to 8.5
Option c – 6.5 to 7.0
Which one of the following is correct? Due to the continuous use of calcium superphosphate as fertiliser in the soil, the pH of the soil increases or decreases.
(a) More than 7
(b) Less than 7
(c) Equal 7
(d) Cannot be predicted
Option a – More than 7
The pH of milk is 6. When it turns sour, the pH
(a) becomes < 6
(b) remains the same, i.e., 6
(c) becomes > 6
(d) becomes neutral, i.e., 7
Option d – becomes neutral, i.e., 7
Which of the following may be a possible pH value of an acidic solution?
(a) 6
(b) 7
(c) 8
(d) 9
Option a – 6
The solution of which one of the following will have a pH of less than 7?
(a) NaOH
(b) KCI
(c) FeCl3
(d) NaCl
Option c – FeCl3
On the labels of the bottles, some soft drinks are claimed to be acidity regulators. They regulate acidity using
(a) carbon dioxide
(b) bicarbonate salts
(c) Both (a) and (b)
(d) carbon dioxide and lime
Option b – bicarbonate salts
Which chemical was an important symbol in our struggle fo for freedom? ( Acids Bases and Salts Class 10 MCQ Online Test )
(a) Glucose
(b) Fertiliser
(c) Medicine
(d) Sodium chloride
Option d – Sodium chloride
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