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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
What is composition of dry air ?
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Ans 1: Nitrogen 78.09Oxygen 20.94Argon 0.93Carbon dioxide 0.03
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
What is composition of dry air ?
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Ans 1: Nitrogen 78.09Oxygen 20.94Argon 0.93Carbon dioxide 0.03
10th Class Chemistry English Medium Chapter 14 Preparation - Set 2
Question # 1
Tell about sodium zeolite .
- Ans 1: Sodium zeolite (an ion exchanger) . It is a naturally occurring resin of sodium aluminium silicate NaAl (SiO3)2which can also be prepared artificially . It is used for softening of water at domestic as well as on industrial scale
10th Class Chemistry English Medium Chapter 14 Preparation - Set 3
Question # 1
Explain why non ionic polar compounds are soluble in water ?
- Ans 1: Water molecule is composed of of hydrogen and oxygen atom. Because of two O-H bonds and two lone pairs , one H2O molecule can form hydrogen bonding with four other H2O molecules . This unique behaviour of water enables it to dissolve many polar non-ionic compounds having hydroxyl group (-OH) like alcohols , organic acids , glucose , sugar etc by forming hydrogen bonds with them
10th Class Chemistry English Medium Chapter 14 Preparation - Set 4
Question # 1
Comment burning in open air is preferred.
- Ans 1: Because in closed area. CO is produced instead of CO2CO causes suffocation and ultimately death.
10th Class Chemistry English Medium Chapter 14 Preparation - Set 5
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 6
Question # 1
How decaying plants consume oxygen ?
- Ans 1: When algae dies , bacteria consume oxygen of the water for decomposition of algae . As a result oxygen depletes in this water . Aquatic animals feel suffocation and ultimately die due to insufficient supply of oxygen
10th Class Chemistry English Medium Chapter 14 Preparation - Set 7
Question # 1
How is aquatic life affected by acid rain?
- Ans 1: 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.
10th Class Chemistry English Medium Chapter 14 Preparation - Set 8
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 9
Question # 1
Justify, ozone is beneficial for human kind.
- Ans 1: Ozone is an allotropic form of oxygen consisting of three oxygen atoms. It is formed in bops atmosphere by the association of an oxygen atom with an oxygen molecule in the mid of stratosphere. It absorb cancer causing radiation UV radiation.
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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