Tetra ethyle lead (TEL) is - (1) a catalyst in burning fossil fuel (2) an antioxidant (3) areductant (4) an antiknock compound

Tetra ethyle lead (TEL) is - (1) a catalyst in burning fossil fuel (2) an antioxidant (3) areductant (4) an antiknock compound
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(4) an antiknock compound Explanation: Tetraethyl lead was extensively used as an additive to gasoline, wherein it served as an effective antiknock agent and prevented exhaust valve and seat wear. The use of TEL in gasoline started in the US, while in Europe, alcohol was initially used. The advantages of leaded gasoline — its higher enemy content and storage quality —eventually led to a universal switch to leaded fuel. One of the greatest advantages of TEL over other antiknock agents or the use of high-octane blend stocks is the very low concentrations needed. Typical formulations called for 1 part of prepared TEL to 1260 parts untreated gasoline.
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Tetra ethyle lead (TEL) is (1) a catalyst in burning fossil fuel (2) an antioxidant (3) a reductant (4) an antiknock compound

Description : Tetra ethyle lead (TEL) is (1) a catalyst in burning fossil fuel (2) an antioxidant (3) a reductant (4) an antiknock compound

Last Answer :  an antiknock compound

Which of the following compounds is used as an antiknock compound? (a) Ethyllithium (b) Tetraethyllead (c) Ethyl acetate (d) Lead acetate

Description : Which of the following compounds is used as an antiknock compound? (a) Ethyllithium (b) Tetraethyllead (c) Ethyl acetate (d) Lead acetate

Last Answer : Tetraethyllead

An antiknock for petrol is - (1) sodium hydroxide (2) ethanol (3) sodium benzoate (4) lead tetraethyl

Description : An antiknock for petrol is - (1) sodium hydroxide (2) ethanol (3) sodium benzoate (4) lead tetraethyl

Last Answer : (4) lead tetraethyl Explanation: The organic compound that is used as an antiknock agent in petroleum is tetraethyl lead. This is a lead based organic compound.

The two reference fuel used for cetane rating are (a) Cetane and iso octane (b) Cetane and tetra ethyl lead (c) Cetance and n-heptane (d) Cetane and α- methyl naphthalene

Description : The two reference fuel used for cetane rating are (a) Cetane and iso octane (b) Cetane and tetra ethyl lead (c) Cetance and n-heptane (d) Cetane and α- methyl naphthalene

Last Answer : Ans : d

Which of the following is an organometallic compound? (A) Isopropyl alcohol (B) Tetra-ethyl lead (C) Zeolite (D) Cumene

Description : Which of the following is an organometallic compound? (A) Isopropyl alcohol (B) Tetra-ethyl lead (C) Zeolite (D) Cumene

Last Answer : (B) Tetra-ethyl lead

are portable devices capable of estimating the combusting efficiency of furnaces, boilers, or other fossil fuel burning machines. a) Sound analyzer. c) Combustion analyzer. b) Light analyzer. d)Temperature analyzer

Description : are portable devices capable of estimating the combusting efficiency of furnaces, boilers, or other fossil fuel burning machines. a) Sound analyzer. c) Combustion analyzer. b) Light analyzer. d)Temperature analyzer

Last Answer : Combustion analyzer. 

are portable devices capable of estimating the combusting efficiency of furnaces, boilers, or other fossil fuel burning machines. a) Sound analyzer. b) Light analyzer. c) Combustion analyzer. d) Temperature analyzer.

Description : are portable devices capable of estimating the combusting efficiency of furnaces, boilers, or other fossil fuel burning machines. a) Sound analyzer. b) Light analyzer. c) Combustion analyzer. d) Temperature analyzer.

Last Answer : Combustion analyzer.

Which of the following quantities has the GREATEST influence on the overall efficiency of a conventional (Rankine cycle) electric generating station burning fossil fuels? w) steam temperature at the steam turbine inlet x) net heating value of the fuel y) steam pressure at the steam turbine inlet z) pounds of ash and sulfur per pound of fuel

Description : Which of the following quantities has the GREATEST influence on the overall efficiency of a conventional (Rankine cycle) electric generating station burning fossil fuels? w) steam temperature at the steam turbine ... pressure at the steam turbine inlet z) pounds of ash and sulfur per pound of fuel 

Last Answer : ANSWER: W -- STEAM TEMPERATURE AT THE STEAM TURBINE INLET 

Which substance is used as antiknock compound? -Do You Know?

Description : Which substance is used as antiknock compound? -Do You Know?

Last Answer : An anti-knocking agent is the substance which is used to reduce the engine knocking. It increases the octane number of the fuel. It helps in auto-ignition by raising the temperature and pressure. TEL is tetraethyl Lead which is used as an Anti-Knocking compound.

Which substance is used as antiknock compound? —

Description : Which substance is used as antiknock compound? —

Last Answer : TEL

Tetraethyl lead (TEL) is added to petrol to (a) prevent its freezing (b) increase its boiling point (c) increase its flash point (d) increase its anti-knocking rating

Description : Tetraethyl lead (TEL) is added to petrol to (a) prevent its freezing (b) increase its boiling point (c) increase its flash point (d) increase its anti-knocking rating

Last Answer : Ans:(d)

The compound to which H2 does not add is – (1) Biphenyl ethylene (2) Tetraphenyl ethylene (3) Tetra - a - naphthylethylene (4) Tetra - 9 - phenanthrylethylene

Description : The compound to which H2 does not add is – (1) Biphenyl ethylene (2) Tetraphenyl ethylene (3) Tetra - a - naphthylethylene (4) Tetra - 9 - phenanthrylethylene

Last Answer : (2) Tetraphenyl ethylene Explanation: While H2 is not very reactive under standard conditions, it does form compounds with most elements. Millions of hydrocarbons are known, but they are not formed ... are more electronegative, such as halogens. Hydrogen forms a vast array of compounds with carbon.

How many hydrogen atoms are there in the organic compound 1,1,2,2-tetrabromoethane (read: tetra - bromo - ethane)?

Description : How many hydrogen atoms are there in the organic compound 1,1,2,2-tetrabromoethane (read: tetra - bromo - ethane)?  

Last Answer : ANSWER: 2

The compound to which H2 does not add is (1) Biphenyl ethylene (2) Tetraphenyl ethylene (3) Tetra – a –naphthylethylene (4) Tetra –9 – phenanthrylethylene

Description : The compound to which H2 does not add is (1) Biphenyl ethylene (2) Tetraphenyl ethylene (3) Tetra – a –naphthylethylene (4) Tetra –9 – phenanthrylethylene

Last Answer : Tetraphenyl ethylene

The Classical example of redox reaction is Combustion of fossil fuel. During combustion of fossil fuels, the carbon compound in the fossil fuel reacts with oxygen in the presence of a heat source to form carbon dioxide (CO 2 ) and water. Energy is also needed for the fossil fuel to react with oxygen, so the energy used in portion of combustion is an endothermic reaction.

Description : The Classical example of redox reaction is Combustion of fossil fuel. During combustion of fossil fuels, the carbon compound in the fossil fuel reacts with oxygen in the presence of a heat source to ... to react with oxygen, so the energy used in portion of combustion is an endothermic reaction.

Last Answer : Combustion of fossil fuel

The octane rating of gasoline provides information on(a) its antiknock properties(b) its ignition properties(c) its percentage proportion of octane(d) its percentage content of isooctane

Description : The octane rating of gasoline provides information on (a) its antiknock properties (b) its ignition properties (c) its percentage proportion of octane (d) its percentage content of isooctane

Last Answer : its antiknock properties

How many tons of carbon dioxide are produced each year by burning fossil fuels ?

Description : How many tons of carbon dioxide are produced each year by burning fossil fuels ?

Last Answer : 21.3 billion tons of carbon dioxide is produced annually by burning fossil fuels

A person having osteoporosis is suffering from lead poisoning. Ethlene diamine tetra acetic acid (EDTA) is administered for this condition. The best f

Description : A person having osteoporosis is suffering from lead poisoning. Ethlene diamine tetra acetic acid (EDTA) is administered for this condition. The best f

Last Answer : A person having osteoporosis is suffering from lead poisoning. Ethlene diamine tetra acetic acid (EDTA ... C. disodium salt D. calcium dihydrogen salt

Anti-knock for compression ignition engines is a) napthene b) tetra ethyl lead c) amyl nitrate d) hexadecane

Description : Anti-knock for compression ignition engines is a) napthene b) tetra ethyl lead c) amyl nitrate d) hexadecane

Last Answer : Answer: c Explanation: Amyl nitrate is the anti-knock for compression ignition engines.

Which of the following additives improves the cetane number of diesel? (A) Amyl nitrate (B) Ethyl mercaptan (C) Naphthenic acid (D) Tetra ethyl lead

Description : Which of the following additives improves the cetane number of diesel? (A) Amyl nitrate (B) Ethyl mercaptan (C) Naphthenic acid (D) Tetra ethyl lead

Last Answer : (B) Ethyl mercaptan

Tetra-ethyl lead is added in gasoline to (A) Increase its smoke point (B) Reduce gum formation(C) Reduce the pour point(D) Increase its octane numbe

Description : Tetra-ethyl lead is added in gasoline to (A) Increase its smoke point (B) Reduce gum formation (C) Reduce the pour point (D) Increase its octane numbe

Last Answer : (D) Increase its octane numbe

The compound of Portland cement which reacts immediately with water and also sets first is (A) Tri-calcium silicate (B) Di-calcium silicate (C) Tri-calcium aluminate (D) Tetra calcium alumino ferrite

Description : The compound of Portland cement which reacts immediately with water and also sets first is (A) Tri-calcium silicate (B) Di-calcium silicate (C) Tri-calcium aluminate (D) Tetra calcium alumino ferrite

Last Answer : Answer: Option C

The compound of Portland cement which contributes to the strength after two to three years is (A) Tri-calcium silicate (B) Di-calcium silicate (C) Tri-calcium aluminate (D) Tetra-calcium alumino ferrite

Description : The compound of Portland cement which contributes to the strength after two to three years is (A) Tri-calcium silicate (B) Di-calcium silicate (C) Tri-calcium aluminate (D) Tetra-calcium alumino ferrite

Last Answer : Answer: Option B

Pick up the compound responsible for early strength of cement from the following: (A) Tetra-calcium alumino-ferrite (B) Tri-calcium silicate (C) Tri-calcium aluminate (D) Di-calcium silicate

Description : Pick up the compound responsible for early strength of cement from the following: (A) Tetra-calcium alumino-ferrite (B) Tri-calcium silicate (C) Tri-calcium aluminate (D) Di-calcium silicate

Last Answer : Answer: Option B

In the cement the compound quickest to react with water, is (A) Tri-calcium aluminate (B) Tetra-calcium alumino-ferrite (C) Tri-calcium silicate (D) Di-calcium silicate

Description : In the cement the compound quickest to react with water, is (A) Tri-calcium aluminate (B) Tetra-calcium alumino-ferrite (C) Tri-calcium silicate (D) Di-calcium silicate

Last Answer : Answer: Option A

Is Ethanol a Fossil Fuel ?

Description : Is Ethanol a Fossil Fuel ?

Last Answer : Ethanol is not fossil fuel.

What does fossil fuel mean ?

Description : What does fossil fuel mean ?

Last Answer : In the absence of air, plants and animals become a kind of fuel for thousands of years under extreme pressure and heat. This is called fossil fuel. Fossil fuels such as coal , natural gas , mineral oil, etc.

(3) Oxides of nitrogen and sulphur Explanation: Acid rain is caused by emissions of oxides of Sulfur and Nitrogen (Sulfur Dioxide and Nitrogen Oxide), which react with the water molecules in the atmosphere to produce acids. The emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx) result from fossil fuel combustion.

Description : (3) Oxides of nitrogen and sulphur Explanation: Acid rain is caused by emissions of oxides of Sulfur and Nitrogen (Sulfur Dioxide and Nitrogen Oxide), which react with the water molecules in the ... The emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx) result from fossil fuel combustion.

Last Answer : (3) live wire and the neutral wire Explanation: Three wires enter most homes from the power pole-two "hot" wires and a third "neutral" wire. Each hot wire provides 120- volt current for ... the main switch is put off because the electric circuit (the path where the electricity travels) gets opened.

Oxide of sulphur present in the atmosphere are washed down by rains to cause – (1) Depletion of fossil fuel reserves (2) Eutrophication in lakes (3) Lowering of pH of soil (4) Industrial smog formation

Description : Oxide of sulphur present in the atmosphere are washed down by rains to cause – (1) Depletion of fossil fuel reserves (2) Eutrophication in lakes (3) Lowering of pH of soil (4) Industrial smog formation

Last Answer : (1) Depletion of fossil fuel reserves Explanation: The oxide of Sulphur (Sulphur Dioxide) is washed down on earth as acid rain.

Oxide of sulphur present in the atmosphere are washed down by rains to cause : (1) Depletion of fossil fuel reserves (2) Eutrophication in lakes (3) Lowering of pH of soil (4) Industrial smog formation

Description : Oxide of sulphur present in the atmosphere are washed down by rains to cause : (1) Depletion of fossil fuel reserves (2) Eutrophication in lakes (3) Lowering of pH of soil (4) Industrial smog formation

Last Answer : Depletion of fossil fuel reserves

Write the meaning of a) unleaded petrol b) antiknock value of petrol c) CNG

Description : Write the meaning of a) unleaded petrol b) antiknock value of petrol c) CNG

Last Answer : a) Unleaded petrol means petrol without the lead added to it b) Antiknock value of petrol is c) CNG stands for Compressed Natural Gas. It is a clean fuel. It is environment friendly.

. Bromine is used in the preparation of(A) Fire extinguishing compounds (B) Fire proofing agents (C) Dyes and antiknock compounds (D) All (A), (B) and (C)

Description : . Bromine is used in the preparation. of (A) Fire extinguishing compounds (B) Fire proofing agents (C) Dyes and antiknock compounds (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

What are the other causes of global warming besides the burning of fossil fuels?

Description : What are the other causes of global warming besides the burning of fossil fuels?

Last Answer : First you need to establish that there actually is some such thing as "global warming". The globe has always been warming and cooling, and really nobody has any idea what causes it. For instance ... whatever you mean by that, is caused by anything humans are doing is NOT supported by observations.

Burning of fossil fuels is the main source of which of the following pollutants?

Description : Burning of fossil fuels is the main source of which of the following pollutants?

Last Answer : Burning of fossil fuels is the main source of which of the following pollutants? A. Nitrogen oxide B. nitric acid C. nitrous oxide D. sulphur dioxide

which describes the burning of fossil fuels?

Description : which describes the burning of fossil fuels?

Last Answer : Burning fossil fuels contributes to climate change and are nonrenewable.

Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal gas (c) excess release of carbon monoxide by incomplete combustion (d) excess formation of CO2 by combustion and animal respiration.

Description : Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal  gas (c) excess release of carbon monoxide by incomplete  combustion (d) excess formation of CO2 by combustion and  animal respiration.

Last Answer : (a) excess NO2 and SO2 from burning fossil fuels

Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal gas (c) excess release of carbon monoxide by incomplete combustion (d) excess formation of CO2 by combustion and animal respiration.

Description : Acid rains are produced by (a) excess NO2 and SO2 from burning fossil fuels (b) excess production of NH3 by industry and coal gas (c) excess release of carbon monoxide by incomplete combustion (d) excess formation of CO2 by combustion and animal respiration.

Last Answer : (a) excess NO2 and SO2 from burning fossil fuels

In the past week, John Kerry has landed in Paris, Tel Aviv, Riyadh, and Brussels - maybe more. Does he carry a passport?

Description : In the past week, John Kerry has landed in Paris, Tel Aviv, Riyadh, and Brussels - maybe more. Does he carry a passport?

Last Answer : I don't know the answer for sure, but 25 years ago when I flew from Dover Airforce base and landed in Germany at Rhein Main Air base (my dad was military and we caught a space A flight for a ... had some food or alcohol maybe, I am not sure. Basically, my military ID was my ID into America.

What is Sneha Tel ?

Description : What is Sneha Tel ?

Last Answer : Hard and solid lipids are called lubricants and liquid lipids are called oils.

Tel. call: IRS has filed law suit

Description : Tel. call: IRS has filed law suit

Last Answer : Very likely. Did somebody call you? There have been a lot of IRS scams. IRS has a warning on their web site: http://www.irs.gov/uac/Newsroom/IRS-Reiterates-Warning-of-Pervasive-Telephone-Scam

What is the zip-code for Tel Aviv Levinsky street 37?

Description : What is the zip-code for Tel Aviv Levinsky street 37?

Last Answer : What is the answer ?

Octane number of gasoline is obtained by comparing the performance of the engine when running on a mixture of the following hydrocarbons A. ethane and methane B. normal heptane and iso-octane C. iso-heptane and octane D. iso-octane and TEL

Description : Octane number of gasoline is obtained by comparing the performance of the engine when running on a mixture of the following hydrocarbons A. ethane and methane B. normal heptane and iso-octane C. iso-heptane and octane D. iso-octane and TEL

Last Answer : ANSWER : B

Which Country recently relocated its embassy from Tel Aviv to Jerusalem? (a) USA (b) UK (c) Canada (d) None of These

Description : Which Country recently relocated its embassy from Tel Aviv to Jerusalem? (a) USA (b) UK (c) Canada (d) None of These

Last Answer : (a) USA

In a recent research study initiated by Tel-E-Fone Telecommunications, survey calls were made to a randomly selected group in which every member has an equal chance of selection. This type of sample selection is called A. Probability sample B. Convenience sample C. Judgment sample D. Quota sample E. Area sample

Description : In a recent research study initiated by Tel-E-Fone Telecommunications, survey calls were made to a randomly selected group in which every member has an equal chance of selection. This type of sample selection ... sample B. Convenience sample C. Judgment sample D. Quota sample E. Area sample

Last Answer : A. Probability sample

A compound, C15H24, is reacted with excess hydrogen using a metal catalyst. One equivalent of the compound consumed three equivalents of hydrogen. Howmany rings did the original compound have? (a) 1 only (b) 2 only (c) 3 only (d) None of these

Description : A compound, C15H24, is reacted with excess hydrogen using a metal catalyst. One equivalent of the compound consumed three equivalents of hydrogen. How many rings did the original compound have? (a) 1 only (b) 2 only (c) 3 only (d) None of these

Last Answer : 1 only

The Refrigerant 'FREON' is – (1) Calcium Tetra Fluoride (2) Difluoro Dichloro Methane (3) Fluorspar and Felspar (4) Hydrofluosilicic Acid

Description : The Refrigerant 'FREON' is – (1) Calcium Tetra Fluoride (2) Difluoro Dichloro Methane (3) Fluorspar and Felspar (4) Hydrofluosilicic Acid

Last Answer : (2) Difluoro Dichloro Methane Explanation: Dichlorodifluorornethane (R-12), is a colourless gas, and usually sold under the brand name Freon-12, is a chlorofluorocarbon halornethane (CFC), used as a ... 1994 clue to concerns about damage to the ozone layer. It is soluble in many organic solvents.

How many EDTA (lethylendiamine tetra acetic acid) molecules are required to make an octahedral complex with a Ca2+ ion.

Description : How many EDTA (lethylendiamine tetra acetic acid) molecules are required to make an octahedral complex with a Ca2+ ion.

Last Answer : EDTA is a hexadentate ligand therefore only one EDTA molecule is required to form octahedral complex. 

The Refrigerant ‘FREON' is (1) Calcium Tetra Fluoride (2) Difluoro Dichloro Methane (3) Fluorspar and Felspar (4) Hydrofluosilicic Acid

Description : The Refrigerant ‘FREON' is (1) Calcium Tetra Fluoride (2) Difluoro Dichloro Methane (3) Fluorspar and Felspar (4) Hydrofluosilicic Acid

Last Answer : Difluoro Dichloro Methane

What is a fossil fuel?

Description : What is a fossil fuel?

Last Answer : A fossil fuel is a non-renewable resource that is formed from the remains of dead plants and animals over millions of years, such as coal, oil, and natural gas, and is an important concept in energy production and environmental science.

What is fossil fuel?

Description : What is fossil fuel?

Last Answer : Fossil fuel is a natural fuel formed from the remains of dead organisms, such as coal, oil, and natural gas, and is an important concept in energy and environmental science.