Gujarat police Science and technology mock test 1 : Gujarat police Science and technology mock test 1 : The upcoming Gujarat Police Constable written exam carries a total of 200 marks. Out of these 200 marks, a total of 40 marks are for Science and Technology, Current Affairs and General Knowledge. Out of 40 marks, there is a possibility of asking 20 marks from Science and Technology. It is necessary to read Science and Technology to get very good marks. It is also very important to take an online mock test for this subject.
Friends, through this jobs6g.in website, we are giving the opportunity to give free mock tests of all the topics given in the syllabus of Police Constable, so to give free mock tests for the preparation of Police Constable, visit our website. Talking about today’s mock test on science and technology, it is about acids, bases, and salts.
Gujarat Police Mock test time table
Gujarat police mock test 1 information
| વિજ્ઞાન Mock Test 1 | |
| વિષયનું નામ | ગણિત |
| ટોપીક નું નામ | એસિડ ,બેઈઝ અને ક્ષાર |
| કુલ પ્રશ્નો | 20 |
| કુલ માર્ક | 20 |
| નેગેટિવ માર્ક | -0.25 |
| કુલ સમય | 10 મિનિટ |
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Acids
Definition: Acids are substances that release hydrogen ions (H⁺) when dissolved in water.
Properties:
- Taste sour (though tasting acids is unsafe!).
- Turn blue litmus paper red.
- React with metals to produce hydrogen gas.
- React with bases to form salts and water (neutralization reaction).
Examples:
- Strong acids: Hydrochloric acid (HCl), sulfuric acid (H₂SO₄).
- Weak acids: Acetic acid (vinegar), citric acid (in lemons).
Uses:
- Hydrochloric acid is used in cleaning.
- Sulfuric acid is essential in batteries and fertilizers.
Bases
Definition: Bases are substances that release hydroxide ions (OH⁻) when dissolved in water.
Properties
- Taste bitter.
- Feel slippery to the touch (like soap).
- Turn red litmus paper blue.
- React with acids to form salts and water.
Examples :
Strong bases: Sodium hydroxide (NaOH), potassium hydroxide (KOH).
Weak bases: Ammonia (NH₃).
Uses:
- Sodium hydroxide is used in making soaps and detergents.
- Calcium hydroxide (slaked lime) is used in whitewashing.
Salts
Definition: Salts are ionic compounds formed when acids react with bases during a neutralization reaction.
- Acid + Base → Salt + Water
Properties:
- Can be neutral, acidic, or basic depending on the acid and base involved.
- Most are soluble in water.
- Have high melting and boiling points.
Examples:
Sodium chloride (NaCl): Common table salt.
Baking soda (NaHCO₃): Used in cooking and cleaning.
Used:
- Sodium chloride is used in food preservation.
- Calcium carbonate (CaCO₃) is used in construction as limestone.
- Why Mock Tests on Acids, Bases, and Salts Are Important for Gujarat Police Constable Preparation
Part of General Science Syllabus:
Acids, bases, and salts are fundamental topics in the general science section of competitive exams, including Gujarat Police Constable.
Frequent Questions:
Questions are often asked about their properties, examples, and uses.
Improves Confidence:
Practicing mock tests helps in understanding the types of questions that might appear and builds exam confidence.
Time Management:
Mock tests train you to solve questions within a limited time, which is crucial during the actual exam.
Enhances Recall:
- Revisiting concepts through mock tests ensures better retention of key facts.
Tips for Preparing This Topic
Learn common acids, bases, and salts, and their uses.
- Understand their properties and examples.
- Solve previous years’ questions related to this topic.
- Take regular mock tests to assess your preparation and improve speed and accuracy.
- Mock tests are a great way to focus your study efforts on the most relevant content for the Gujarat Police Constable exam.
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