What the prefix tetra- indicate three atoms?

What the prefix tetra- indicate three atoms?
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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

Which prefix indicate the smallest part of a unit?

Description : Which prefix indicate the smallest part of a unit?

Last Answer : kilo

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

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

The number of lone pairs available on the central atom of sulphur tetra fluoride is

Description : The number of lone pairs available on the central atom of sulphur tetra fluoride is

Last Answer : The number of lone pairs available on the central atom of sulphur tetra fluoride is

One of the main functions of Vitamin K is the cofactor for (A) Carboxylase for the formation of γ--carboxy glutamate (B) Methylation by S-adenosyl methionine (C) Carboxylation by biotin (D) One carbon transfer by tetra hydrofolate

Description : One of the main functions of Vitamin K is the cofactor for (A) Carboxylase for the formation of γ--carboxy glutamate (B) Methylation by S-adenosyl methionine (C) Carboxylation by biotin (D) One carbon transfer by tetra hydrofolate

Last Answer : Answer : A

Reduction of D-ribonucleotides to D-deoxy ribonucleotides in prokaryotes requires (A) 5, 6 dimethyl benzimindazole cobamide (B) Thiredoxin (C) Tetra hydrobiopterin (D) Tetra hydrofolate VITAMINS 131

Description : Reduction of D-ribonucleotides to D-deoxy ribonucleotides in prokaryotes requires (A) 5, 6 dimethyl benzimindazole cobamide (B) Thiredoxin (C) Tetra hydrobiopterin (D) Tetra hydrofolate VITAMINS 131

Last Answer : Answer : A

Reduction of D-ribonucleotides to Ddeoxy ribonucleotides in prokaryotes requires (A) 5, 6 dimethyl benzimidazole cobamide (B) Thioredoxin (C) Tetra hydrobiopterin (D) Tetra hydrofolate

Description : Reduction of D-ribonucleotides to Ddeoxy ribonucleotides in prokaryotes requires (A) 5, 6 dimethyl benzimidazole cobamide (B) Thioredoxin (C) Tetra hydrobiopterin (D) Tetra hydrofolate

Last Answer : Answer : B

Neogenesis of methyl group is (A) The availability of methyl group form δ adenosyl methionine (B) The availability of methyl group from betaine (C) Interaction between N5 N10 methylene tetra hydrofolate with a NAD+ dependent reductase (D) Availability of methyl group from methyl B12

Description : Neogenesis of methyl group is (A) The availability of methyl group form δ adenosyl methionine (B) The availability of methyl group from betaine (C) Interaction between N5 N10 methylene tetra hydrofolate with a NAD+ dependent reductase (D) Availability of methyl group from methyl B12

Last Answer : Answer : C

Tetra hydroglolate can be freed from N5 methyl tetrahydrofolate only by (A) Nor epinephrine (B) Ethanol amine (C) Nicotinamide (D) Vitamin B12

Description : Tetra hydroglolate can be freed from N5 methyl tetrahydrofolate only by (A) Nor epinephrine (B) Ethanol amine (C) Nicotinamide (D) Vitamin B12

Last Answer : Answer : D

Give the formula of Borax. Borax is chemically called as. Borax Na2B4O7 10H2O is chemically called as hydrated sodium tetra borate

Description : Give the formula of Borax. Borax is chemically called as. Borax Na2B4O7 10H2O is chemically called as hydrated sodium tetra borate

Last Answer : Garnet is the ore of which element. Give its chemical formula. Garnet is Silicate ore of Aluminium (MgFe) 3 AlSi3O2.

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.

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

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

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

Last Answer : (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. ... needed. Typical formulations called for 1 part of prepared TEL to 1260 parts untreated gasoline.

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.

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.

Poly-tetra-fluoro ethylene (PTFE) is known as (A) Dacron (B) Teflon (C) Bakelite

Description : Poly-tetra-fluoro ethylene (PTFE) is known as (A) Dacron (B) Teflon (C) Bakelite

Last Answer : (B) Teflon

Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E. (poly chloro tetra fluoro ethylene). It is also called (A) Polyurethane (B) Silicone rubber (C) Teflon (D) Epoxy resin

Description : Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E. (poly chloro tetra fluoro ethylene). It is also called (A) Polyurethane (B) Silicone rubber (C) Teflon (D) Epoxy resin

Last Answer : (C) Teflon

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

Iso-octane is used as a reference substance in the definition of octane number and it is assigned an octane number value of 100. Iso-octane is chemically known as (A) α-methyl naphthalene (B) 2-2-4 tri methyl pentane (C) 1, 3 butadiene (D) Tetra methyl ethylene

Description : Iso-octane is used as a reference substance in the definition of octane number and it is assigned an octane number value of 100. Iso-octane is chemically known as (A) α-methyl naphthalene (B) 2-2-4 tri methyl pentane (C) 1, 3 butadiene (D) Tetra methyl ethylene

Last Answer : (B) 2-2-4 tri methyl pentane

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

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. 

What does TCM stand for in medical terms? A. Techno Circuit Module B. Traditional Chinese medicine (Answer) C. Tetra Carbon Mono oxide

Description : What does TCM stand for in medical terms? A. Techno Circuit Module B. Traditional Chinese medicine (Answer) C. Tetra Carbon Mono oxide

Last Answer : B. Traditional Chinese medicine (Answer)

Process of replacing the sequence of lines of codes is known as: a. Expanding die macro b. Expanding tri macro c. Tetra macro d. None of these

Description : Process of replacing the sequence of lines of codes is known as: a. Expanding die macro b. Expanding tri macro c. Tetra macro d. None of these

Last Answer : a. Expanding die macro

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

Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E (poly chloro tetra fluoro ethylene). It is also called (A) Polyurethane (B) Silicone (C) Teflon (D) Epoxy resin

Description : Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E (poly chloro tetra fluoro ethylene). It is also called (A) Polyurethane (B) Silicone (C) Teflon (D) Epoxy resin

Last Answer : (C) Teflon

P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as (A) Bakelite (B) Neoprene (C) Teflon (D) Nylon-66

Description : P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as (A) Bakelite (B) Neoprene (C) Teflon (D) Nylon-66

Last Answer : (C) Teflon

Teflon is (A) Phenol formaldehyde (B) An inorganic polymer (C) Poly tetra-fluoro-ethylene (P.T.F.E.) (D) A monomer

Description : Teflon is (A) Phenol formaldehyde (B) An inorganic polymer (C) Poly tetra-fluoro-ethylene (P.T.F.E.) (D) A monomer

Last Answer : (C) Poly tetra-fluoro-ethylene (P.T.F.E.)

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

Initial setting of cement is caused due to (A) Tri-calcium silicate (B) Di-calcium silicate (C) Tri-calcium aluminate (D) Tetra calcium alumino ferrite

Description : Initial setting of cement is caused due to (A) Tri-calcium silicate (B) Di-calcium silicate (C) Tri-calcium aluminate (D) Tetra calcium alumino ferrite

Last Answer : Answer: Option C

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

Good quality cement contains higher percentage of (A) Tri-calcium silicate (B) Di-calcium silicate (C) Tri-calcium aluminate (D) Tetra calcium alumino ferrite

Description : Good quality cement contains higher percentage of (A) Tri-calcium silicate (B) Di-calcium silicate (C) Tri-calcium aluminate (D) Tetra calcium alumino ferrite

Last Answer : Answer: Option A

Ultimate strength to cement is provided by (A) Tri-calcium silicate (B) Di-calcium silicate (C) Tri-calcium aluminate (D) Tetra calcium alumino ferrite

Description : Ultimate strength to cement is provided by (A) Tri-calcium silicate (B) Di-calcium silicate (C) Tri-calcium aluminate (D) Tetra calcium alumino ferrite

Last Answer : Answer: Option B

Rapid hardening cement contains (A) Tri-calcium silicate (B) Tri-calcium aluminate (C) Tetra-calcium alumino-ferrite (D) Di-calcium silicate

Description : Rapid hardening cement contains (A) Tri-calcium silicate (B) Tri-calcium aluminate (C) Tetra-calcium alumino-ferrite (D) Di-calcium silicate

Last Answer : Answer: Option A

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

The constituent of cement which is responsible for all the undesirable properties of cement is (A) Di-calcium silicate (B) Tri-calcium silicate (C) Tri-calcium aluminate (D) Tetra calcium alumino ferrite

Description : The constituent of cement which is responsible for all the undesirable properties of cement is (A) Di-calcium silicate (B) Tri-calcium silicate (C) Tri-calcium aluminate (D) Tetra calcium alumino ferrite

Last Answer : Answer: Option C

The electrolyte used in sodium nickel chloride batteries is • Sodium chloride • Tetra chloraluminate • Sodium bicarbonate • Sodium glutamate

Description : The electrolyte used in sodium nickel chloride batteries is • Sodium chloride • Tetra chloraluminate • Sodium bicarbonate • Sodium glutamate

Last Answer : • Tetra chloraluminate

Which one of the following tests employs Ethylene Diamine Tetra Acetic Acid as a titrating agent? (a) Chlorides (b) Dissolved oxygen (c) Hardness (d) Residual chlorine

Description : Which one of the following tests employs Ethylene Diamine Tetra Acetic Acid as a titrating agent? (a) Chlorides (b) Dissolved oxygen (c) Hardness (d) Residual chlorine

Last Answer : (c) Hardness

The development of first 28 days strength is on account of the hydration of (a) Tricalcium silicate (b) Dicalcium silicate (c) Tricalcium aluminate (d) Tetra calcium alumina ferrite

Description : The development of first 28 days strength is on account of the hydration of (a) Tricalcium silicate (b) Dicalcium silicate (c) Tricalcium aluminate (d) Tetra calcium alumina ferrite

Last Answer : (a) Tricalcium silicate

About 70% to 80% of cement is contributed by [ A ] Tricalcium silicate and Tricalcium aluminate [ B ] Tricalcium silicate and Dicalcium silicate [ C ] Tricalcium Aluminate and Dicalcium silicate [ D ] Tricalcium Aluminate and Tetra calcium Aluminoferrite

Description : About 70% to 80% of cement is contributed by [ A ] Tricalcium silicate and Tricalcium aluminate [ B ] Tricalcium silicate and Dicalcium silicate [ C ] Tricalcium Aluminate and Dicalcium silicate [ D ] Tricalcium Aluminate and Tetra calcium Aluminoferrite

Last Answer : [ B ] Tricalcium silicate and Dicalcium silicate

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

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

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

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Description : What is the prefix para mean in these two job titles?

Last Answer : here

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Description : Why do we prefix "degree" in temperature measurement scales?

Last Answer : We not only need the name of the reference scale, but to know the measurement units of that scale. There are many redundancies in the English language. Some have been dropped, and others ... measurement unit nor measurement scale. So sometimes the redundancies do get dropped, and other times not.

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Description : How do I dial a prefix on a Brother fax-machine?

Last Answer : With our fax machine you can't set it up globally like that. Our solution, that should work for you is to set your access code on a speed dial number. So on a Brother machine, I think you can do it ... to *99 . Then when you go to send something, hit button 1 then dial the number and click start.

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Description : Where does the prefix "be" come from in words like befuddled, bedazzled, bedecked, etc?

Last Answer : It's really of deep english origin, often identified as an uninflected form of 'by', but also as a form derived from the same indo-european root as the verb 'be'. This accounts for its numerous ... on, around, etc., or even when used as just an intensifier for an adjective, verb, or participle)

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Description : what is the prefix of refold?

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