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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
Why water is universal solvent give with two unique properties as a reason
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Ans 1: Water is a universal solvent because it can dissolve almost al the minerals . Its ability to dissolve substances is because of two properties of water1: Polarity of water molecule2: Exceptional hydrogen bonding ability
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
Why water is universal solvent give with two unique properties as a reason
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Ans 1: Water is a universal solvent because it can dissolve almost al the minerals . Its ability to dissolve substances is because of two properties of water1: Polarity of water molecule2: Exceptional hydrogen bonding ability
10th Class Chemistry English Medium Chapter 14 Preparation - Set 2
Question # 1
How water used as a cleansing agent in industries causes pollution .
- Ans 1: Water used as cleaning agent in industries is directly discharged out . This water contains all kinds of toxic chemicals and detergents
10th Class Chemistry English Medium Chapter 14 Preparation - Set 3
Question # 1
How acid rain effects aquatic life?
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Ans 1: (i) Acid rain on soil and rocks leaches heavy metals (Al. Fig, Pb, Cr. etc) with it and discharges these metals into rivers and lakes. This water is used by human beings for drinking purpose. These metals accumulate in human body to a toxic level. On the other hand, aquatic life present in lakes also suffers because of high concentration of these metals. Especially high concentration of aluminium ions clogs the fish gills. It causes suffocation and ultimately death of fish.(ii) Acid rain attacks the calcium carbonate present in the marble and limestone of buildings and monuments. Thus, these buildings are getting dull and eroded day by day.(iii) Acid rain increases the acidity of the soil. Many crops and plants cannot grow properly in such soil. It also increases the toxic metals in the soil that poisons the vegetation. Even old trees are being affected due to acidity of soil. Their growth is retarded. They get dry and die.(iv)Acid rain directly damages the leaves of trees and plants, thus limiting their growth. Depending upon the severity of the damage. plants growth can be hampered. Plants capability to resist cold or diseases reduces and ultimately die
10th Class Chemistry English Medium Chapter 14 Preparation - Set 4
Question # 1
What Secondary pollutants.
- Ans 1: They are produced by various reactions of primary pollutants.these are sulphuric acid, carbonic acids, hydrofluoric acid ,ozone and peroxyacetyl nitrate.
10th Class Chemistry English Medium Chapter 14 Preparation - Set 5
Question # 1
What threats are to human health due to SO2 gas as air pollutant ?
- Ans 1: SO2 is a colorless gas having irritating smell , It causes suffocation , irritation and severe respiratory problems to asthmatic people
10th Class Chemistry English Medium Chapter 14 Preparation - Set 6
Question # 1
How sodium zeolite softens water ?
- Ans 1: Sodium zeolite is a naturally occurring resin of sodium aluminium silicate NaAl(SiO3)2, which can also be prepared artificially . It is used for softening of water at domestic as well as on industrial scale . When water is passed through resin , sodium ions of the resin are exchanged with the unwanted calcium and magnesium ions of the hard water
- Ans 2: Na2 zeolite + CaSO4(aq)→ Ca zeolite + Na2SO4(aq)
10th Class Chemistry English Medium Chapter 14 Preparation - Set 7
Question # 1
CO is an hidden enemy, explain its action.
- Ans 1: CO is an air pollutant. It is a health hazard being highly poisonous gas. Being colorless and odorless, its presence cannot be noticed easily and readily. When inhaled. it binds with the haemoglobin most strongly than that of oxygen . Thus hindering the supply of oxygen in body . Exposure to higher concentration of CO causes headache and fatigue . If inhaled for a long time it results in breathing difficulties and ultimately death . It is the reason burning is not allowed in closed places . It is advised to switch off coal or gas heaters ,cooking range etc before going to sleep
10th Class Chemistry English Medium Chapter 14 Preparation - Set 8
Question # 1
What do you mean by Ozone hole?
- Ans 1: A single chlorine free radical released by teh decomposition of CFCs is capable of destroying upto many lacs of ozone molecules.the region in which ozone layer depletes is called ozone hole.
10th Class Chemistry English Medium Chapter 14 Preparation - Set 9
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 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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