ICSE X | CHEMISTRY Board Paper – 2015 ICSE Board Class X Chemistry Board Paper – 2015 Time: 2 hrs Max. Marks: 80 Answers to this Paper must be written on the paper provided separately. You will not be allowed 10 write during the first 15 minutes. This time is to be spent in reading the Question Paper. The time given at the head of this paper is the time allowed for writing the answers. Section I is compulsory. Attempt any four questions from section II. The intended marks for questions or parts
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Optical properties • Anomalous Quantum Hall Effect in monolayer and bilayer graphene • The mystery of the missing pie Angela Intermite The rise of graphene‚ 18/10/2010 3/16 Graphene: a rising star 0D fullerenes 1D nanotubes 3D graphite Angela Intermite The rise of graphene‚ 18/10/2010 4/16 The material that should not exist L.D. Landau Until 2004… R. E. Peierls Angela Intermite The rise of graphene‚ 18/10/2010 5/16 The bridge between theory and experimental
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Chad Saladin Mrs. Elmore Expository Writing 25 February 2013 Argument/Debate Paper‚ Proposed Anchoring Ban There has been a recent shift in putting techniques on the PGA Tour. Not a colossal movement‚ just a shift. This shift in putting technique has been gaining steam for years‚ even decades. More and more PGA Tour players are using a putting technique called anchoring. The technique is very simple. The player uses a lengthened putter and anchors the grip end of the club somewhere
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just use any eraser on it‚ it has to be a special eraser that costs more than a regular pencil eraser. Pencils are much more affective at erasing and keeping papers mess free. Secondly‚ pencils are 100 percent organic. They are made up of cedar‚ graphite‚ and metal. Which are all organic substances. Pens are made up of plastic and ink. Ink is made up of oil‚ which is harmful to the earth. Plastic is not organic‚ and pollutes the environment. Also if you break a pen in half‚ it is permanently broken
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named North Korea as part of an "axis of evil" in his 2002 State of the Union Address. (b)The construction of light water reactors - under the 1994 Agreed Framework two light-water reactors would be built in return for the closure of North Korea’s graphite-moderated nuclear power plant program at Yongbyon. This agreement broke down after both sides defaulted‚ especially
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and brittle materials with Moh’s hardness under six‚ such as calcite‚ chalk‚ limestone‚ dolomite‚ kaolin‚ bentonite‚ talc‚ mica‚ magnesite‚ illite‚ pyrophyllite and vermiculite‚ sepiolite‚ attapulgite‚ rectorite‚ diatomite‚ barite‚ gypsum‚ alunite‚ graphite‚ fluorite‚ rock phosphate‚ Kalium ore‚ pumice‚ etc.‚ totally more than 100 kinds of materials. Main Components of powder grinder equipment: HGM series powder grinder equipmentmainly consist of main unit‚ classifier‚ dust cleaner‚ powder collector
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Sugar (Sucrose)- C12H22O11 Vitamin C (Ascorbic Acid)- C6H8O6 Aspirin (Acetylsalicylic Acid)- C9H8O4 Common Name | Chemical Name | acetone | dimethyl ketone; 2-propanone (usually known as acetone) | acid potassium sulfate | potassium bisulfate - used in the conversion of tartrates to bitartrates in wine. | acid of sugar | oxalic acid – used in cleaning or bleaching‚ especially for the removal of rust (iron complexing agent) | ackey | nitric acid | alcali volatil | ammonium
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potassium bicarbonate or potassium chloride‚ is used on electrical fires because the chemical is non conducting agent‚ also used on burning liquids for a smothering action. Class ABC or combination is the most common at homes or schools. It contains a graphite type chemical‚ & is used as a multipurpose extinguisher. Always look at the labels to find out which type of fire the device can be used on. If you use the wrong type of extinguisher‚ you can endanger yourself & make the fire worse. Extinguishers
Free Fire extinguisher Sodium bicarbonate Potassium
SEMICONDUCTOR a solid substance that has a conductivity between that of an insulator and that of most metals‚ either due to the addition of an impurity or because of temperature effects. Devices made of semiconductors‚ notably silicon‚ are essential components of most electronic circuits. 1. A semiconductor is a material which has electrical conductivitybetween that of a conductor such as copper and that of an insulatorsuch as glass. semiconductor is a material whose electrical conductivity is
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script from the writer detailing what the art should represent panel by panel. B. According to Buddy Scalera in in is book Creating Comics from Start to Finish‚ The penciler then makes the descriptions come to life by fleshing them out in graphite‚ as seen in this picture. Once they are approved‚ the pencil drawings are sent to the inker. [Now that I have told you about the penciling‚ let me tell you about the inking.] Inking A. The inker receives the drawing from the
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