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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
Define water softening and name the method of removing hardness ?
- Ans 1: The removal of Mg2+ and Ca2+ions which are responsible for the hardness is called water softening Methods
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Ans 2: 1: Temporary hardness removal :By boilingBy Clark's method2: Permanent hardness removal :By using washing sodaUsing sodium zeolite
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
Define water softening and name the method of removing hardness ?
- Ans 1: The removal of Mg2+ and Ca2+ions which are responsible for the hardness is called water softening Methods
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Ans 2: 1: Temporary hardness removal :By boilingBy Clark's method2: Permanent hardness removal :By using washing sodaUsing sodium zeolite
10th Class Chemistry English Medium Chapter 14 Preparation - Set 2
Question # 1
Where does the ozone layer exist?
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Ans 1: Ozone layer exists in the middle layer of stratosphere about 25-30 km away from earth's surface02+0 —03
10th Class Chemistry English Medium Chapter 14 Preparation - Set 3
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 4
Question # 1
How are sulphur containing compounds emitted naturally?
- Ans 1: Naturally occurring sulphur containing compounds are emitted in the bacterial decay of organic matter. in volcanic gases and forest fires
10th Class Chemistry English Medium Chapter 14 Preparation - Set 5
Question # 1
Why is ozone depleting in atmosphere?
- Ans 1: chlorofluorocarbons (CFCs ) (used as refrigerants in air conditioners and refrigerators) are major cause of depletion of ozone layer. These compounds leak in one way or other escape and diffuse to stratosphere. Ultraviolet radiations break the C-Cl bond in CFCI3 and generates chlorine free radicals
10th Class Chemistry English Medium Chapter 14 Preparation - Set 6
Question # 1
Which bacteria causes the cholera ?
- Ans 1: Cholera is an acute infection caused by the bacteria 'Vibrous cholera which may be found in water contaminated by human feces . Cholera causes severe diarrhea and can be fatal
10th Class Chemistry English Medium Chapter 14 Preparation - Set 7
Question # 1
Write two effects of SO2.
- Ans 1: It is colourless gas having irritating smell. It causes suffocation, irritation and severe problems to asthmatic people.
10th Class Chemistry English Medium Chapter 14 Preparation - Set 8
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 9
Question # 1
State the major sources of CO and CO2 emission
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Ans 1: Sources of oxides of carbon are as follows:• Both of these gases are emitted due to volcanic eruption and decomposition of organic matter naturally.• However, the major source for the emission of these gases is combustion of fossil fuels (coal petroleum and natural gas). Fossil fuels burnt in combustion engine of any any industry or open air fires emit CO2 and CO.Forest fires and burning of wood also emit CO2 and CO. Especially, when supply of oxygen is limited_ emission of CO dominates
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.
