salts of unsaturated dicarboxylic acids‚ on electrolysis will give alkynes. Potassium maleate or potassium fumerate on electrolysis gives acetylene CH − COOK HO − H electrolysis CH || + ⎯⎯ ⎯ ⎯⎯ ⎯→ ||| + 2CO 2 + 2KOH + H2 ⎯ CH − COOK HO − H CH at anode at cathode Physical properties : Pure acetylene is colorless‚ odourless gas‚ presence of impurities such as H2S‚ PH3 will give garlic odour. • It is sparingly soluble in polar solvents like H2O‚ but readily soluble in non – polar solvents like alcohol
Premium Alkene Acid Chlorine
Atomic structure: scientists 1. Democritus: 1st person to think of atom (500 BCE)- philosopher Atom is the smallest piece of an element that has same properties as the element. 2. Lavisier: Law of conservation of mass/ matter • Mass can’t be created or destroy; same amount of stuff 3. Joseph Proust: Law of constant composition (law of definite Proportions) • A compound is always made of the same elements in the same ratio. 4. John Dalton: English school teacher who derived the atomic theory
Free Atom Electron Electric charge
A biological species like an enzyme or microbial cell can either be in solution (or a suspension) within the anodic compartment of the cell or alternatively be immobilised at the electrode. Once a suitable fuel is introduced‚ it is oxidised at the anode partially or totally and the electrons released by this process are used to reduce oxygen at the cathode. Bio-fuel cells are energy-conversion devices based on bio-electrocatalysis power influencing on enzymes or microorganisms. [8-11]. Researchers
Premium Fossil fuel Coal Carbon dioxide
HBeonLabs Off. No. 46‚ 1st Floor‚ Kadamba Complex Gamma-I‚ Greater Noida (India) - 201308 Contact us: +91-120-4298000 +91-9212314779 info@hbeonlabs.com training@hbeonlabs.com www. hbeonlabs.com ELECTRONIC VOTING MACHINE INTRODUCTION This project is design for the student to make them understand the technology used in a now a day’s voting machine system‚ which is used in whole world. These voting machines are equipped with the CPU‚ which control the voting machine. The voting
Premium Rectifier Resistor Direct current
algorithm‚ if the codes of the two points P & Q are 0101 & 0001 then the line segment joining the points P & Q will be ____________ the clipping window. a) totally outside b) partially outside c) totally inside d) none of these. vi) ___________ acts as anode in CRT a) The phosphorous coating b) The glass panel c) The deflectors d) none of these. vii) In the inside-outside test of polygon‚ if the winding number of a point is zero then the point lies ____________ the polygon. a) inside b) outside c) on
Premium Circle Analytic geometry Bernstein polynomial
Transmitters Light emitting diode (LED) in electronics a semiconductor device that emits infrared or visible light when charged with an electric current. Visible LEDs are used in many electronic devices as indicator lamps‚ in automobiles as rear-window and brake lights‚ and on billboards and signs as alphanumeric displays or even full-color posters. Infrared LEDs are employed in autofocus cameras and television remote controls and also as light sources in fiber-optic telecommunication systems.
Premium Laser Optical fiber Light
Abundance and Extraction of Metals 1. a Mineral - A mineral is a naturally occurring inorganic solid‚ with a definite chemical composition‚ and an ordered atomic arrangement. b Ore - Deposit in the Earth of valuable metals contained in minerals. c Economic Natural Resource Deposit - This is a natural deposit of something that is economically viable to mine‚ refine and sell. Hence the deposit must be big enough to last for a large period of time‚ so that it will make enough money for the
Premium Aluminium Oxygen Mineral
Which Fruit or Vegetable Generates the Most Electricity? Abstract People always talk about saving energy‚ or becoming “eco-friendly”. People have found many ways to produce electricity‚ but have they ever tried fruits or vegetables? This project finds which fruit or vegetable produces the most electricity. I tested ten different fruits and vegetables (independent variable) to see which generated the most electricity by measuring the amount of electricity produced in mV (dependent variable)
Premium
metal plates could be connected to a battery or an induction coil. This flow of electricity was necessary in order for the tube to glow. The glow emerged from the negative plate (the cathode) and disappeared into the positive plate (the anode). If a circular anode was sealed into the middle of the tube‚
Premium X-ray Electron Gamma ray
one type of carrier i.e_______________ a)electrons b)holes c)electrons or holes d)none 5. Substrate in n-channel MOSFET is only a single_________________ a)p region b)n region c) pn region d) np region 6. ____________ is the maximum anode current‚ gate being open‚ at which SCR is turned off from ON condition a) Forward current b) holding current c) breakdown current d) none 7. The applied input a.c. power to a half wave rectifier is 100 watts. the d.c. output power obtained is
Premium Transistor Magnetic field Bipolar junction transistor