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Good news for the students who are near to give their board exams of matric class because here is another exciting and most dedicated service offered by this website ilmkidunya.com for all the matric students and this is to provides them a standardize and maintain level of preparation for matric students of each particular subject according to the syllabus mentioned in BISE.
Chemistry, when a student firstly listens to this subject name they definitely come in stress because the chemistry subject is as difficult as its name indicate it.
When a student starts its preparation for exams he/she feel uneasy to learn some subjects chemistry is also one of them because of containing many numerical, balance chemical equations, chemical reactions, and its end products and many other things. Making easy the understanding of this difficult subject “ilmkidunya.com” announced a special online test session for the 10th class students. This type of preparation methodology emphasize every topic of the relevant subject and helps the students to remind and revise it on daily basis. The website starting this session again for the ease of their students. This website portal manages their student's exams preparation in a most comfortable form by giving each subject preparations details both in Urdu and English medium and then dividing every subject equally and each subject is furthermore subdivided into units according to the given chapters of the subjects. The 10th class chemistry subject also designed on the same pattern as mentioned above including the short questions and its answers too. Here a student easily remember the key points of every subject easily and it will help the students not only in the exams but also later on his/her educational career as well.
This website gives student a brilliant chance to get prepare for their board exams through this online preparation method and definitely it helps in time management process during the exams periods, in short this website provides their matric students a genuine online preparation method for board exams it will help the students in all means.
10th Class Chemistry Preparation
10th Class English Medium Subjects
10th Class Urdu Medium Subjects
Online Short Questions For Chapter 6 "10th Class Chemistry English Medium Chapter 14 Preparation "
Try The Short Questions For 10th Class Chemistry English Medium Chapter 14 Preparation
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Total Questions10
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Available Sets9
Chemistry - 10th Class Chemistry English Medium Chapter 14 Preparation
Question # 1
How limestone dissolves in water ?
- Ans 1: Gypsum is sparingly soluble in water , while limestone is insoluble in water . However in the presence of carbon dioxide small quantity of limestone is soluble in water according to the chemical reaction
- Ans 2: CaCO3(s) + CO2(g) + H2O(I) → Ca(HCO3)2(aq)
Prepare Complete Set Wise Questions For Chapter 6 "10th Class Chemistry English Medium Chapter 14 Preparation "
10th Class Chemistry English Medium Chapter 14 Preparation - Set 1
Question # 1
How limestone dissolves in water ?
- Ans 1: Gypsum is sparingly soluble in water , while limestone is insoluble in water . However in the presence of carbon dioxide small quantity of limestone is soluble in water according to the chemical reaction
- Ans 2: CaCO3(s) + CO2(g) + H2O(I) → Ca(HCO3)2(aq)
10th Class Chemistry English Medium Chapter 14 Preparation - Set 2
Question # 1
What do you mean by boiler scales ? How are they removed ?
- Ans 1: Hard water is unfit for use in stem engines ,boilers and turbines because insoluble calcium and magnesium salts deposit inside . They are called scales They are bad conductors of heat and hence more fuel is used . Insoluble calcium and magnesium sulphates not only reduce the efficiency of the engine but also cause the boiler to burst . They can be removed by using HCL
10th Class Chemistry English Medium Chapter 14 Preparation - Set 3
Question # 1
How is acid rain produced?
- Ans 1: When rain water on dissolving air pollutants become more acidic and its pH reduced to 4 thus acid rain is formed on dissolving acidic air pollutants such as sulphur dioxide & nitrogen dioxide by rain water.
10th Class Chemistry English Medium Chapter 14 Preparation - Set 4
Question # 1
Define pollutant, also writes its factors on which it depends?
- Ans 1: A pollutant is a waste material that pollutes air, water and soil. *.Fators. * Chemical nature * Concentration *Persistence.
10th Class Chemistry English Medium Chapter 14 Preparation - Set 5
Question # 1
Define pollutant, also writes its factors on which it depends?
- Ans 1: A pollutant is a waste material that pollutes air, water and soil. *.Fators. * Chemical nature * Concentration *Persistence.
10th Class Chemistry English Medium Chapter 14 Preparation - Set 6
Question # 1
How flood risks are increasing?
- Ans 1: Global warming melts glaciers and snow caps that are increasing flood risks and intense tropical cyclones.
10th Class Chemistry English Medium Chapter 14 Preparation - Set 7
Question # 1
How detergents make the water unfit for aquatic life ?
- Ans 1: The detergent remains in water for a long time and makes the water unfit for aquatic life . The phosphates salts present in detergents cause rapid growth of alga in water bodies , which flow over the surface of water . These plants ultimately die and decay . Decaying plants being biodegradable consume oxygen gas present in water . Thus depletion of oxygen gas results in death of aquatic life
10th Class Chemistry English Medium Chapter 14 Preparation - Set 8
Question # 1
Define atmosphere?
- Ans 1: Atmosphere is the envelope of different gases around the earth. It extends continuously from earth' surface outwards without any boundary. About 99% of atmospheric mass likes within 30 km and 75% lies within the lowest 11 km.
10th Class Chemistry English Medium Chapter 14 Preparation - Set 9
Question # 1
CO2 is responsible for heating up atmosphere, how?
- Ans 1: Because CO2 in the atmosphere acts like a glass wall of a green house. It allows UV radiations to pass through it but does not allow the IR radiations to pass through it. It traps some of the infrared radiations emitted by the Earth. Hence, increased concentration of CO2 layer absorbs the infrared radiations emitted by the Earth's surface that prevents heat energy escaping from the atmosphere. It helps to stop surface from cooling down during night. As the concentration of CO2 in air increases, less heat energy is lost from the surface of the Earth. Therefore, the average temperature of the surface gradually increases. This is called greenhouse effect
10th class Chemistry Chapter 14 Preparation
Here you can prepare 10th chemistry chapter 14 online Short Questions Preparation Unit 14 (Atmosphare). Click the button for 100% free full practice test.
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