Limiting Reagent What ?

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Reaction Time Multiple Of the reactant In That Reagent The rest No So Limiting Reagent.
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Description : What is a limiting reagent ?

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What is the answer and how did you get it using the balanced equation from problem 4 Determine the limiting reagent if you start with 200 grams of sodium hydroxide and 100 grams of sulfuric acid?

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Last Answer : The chemical equation is:2 NaOH + H2SO4 = Na2SO4 + 2 H2OMolar mass of sodium hydroxide is 39,9971 g; molar mass of sulfuric acid is 98,079 g.2 . 39,9971 g NaOH----------------------98,079 g H2SO4200 g ... ---------xx = (200 x 98,079)/2 . 39,9971 = 245 g H2SO4So sulfuric acid is the limiting reagent.

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What reagent is used to test for proteins?

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What is the signal of tolen reagent ?

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The suitable reagent for the following reactions is

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A sample of water from a river was analyzed for the presence of metal ions and the observations were recorded as given below `{:("Reagent added","Obse

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An appropriate reagent for the conversion of 1-propanol to 1-propanal is

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Match the reagent which are used in qualitative analysis of given anions :

Description : Match the reagent which are used in qualitative analysis of given anions :

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An electrophilic reagent is:

Description : An electrophilic reagent is:

Last Answer : An electrophilic reagent is: A. electron-rich species B. electron-deficient spcies C. a Lewis base D. negatively charged species

Nucleophilic part of the reagent attacks the substrate `CH_(3)CH_(2)COCH_(3)` on the :

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Which of the following sequence of reagent is the good mean to furnish the conversion? `R-CH_(2)OHrarr R -CH_(2)NH_(2)`

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Assertion: Phosphorus tribromide is ofter preferred as a reagent for the transformation of an alcohol to the corresponding alkyl bromide Reason: The n

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Which is the best reagent to convert isopropyl alcohol to isopropyl bromide ? `CH_(3)- overset(CH_(3))overset(|)(CH)- OH overset(?)rarr CH_(3) - overs

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Which the following is Lucase reagent

Description : Which the following is Lucase reagent

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Assertion : Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation by a more electropositive metal. Reason : Copp

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Which reagent does not give oxygen as one of the product during oxidation with ozone?

Description : Which reagent does not give oxygen as one of the product during oxidation with ozone?

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What are the Reaction of amino acid using ninhydrin and biuret reagent?

Description : What are the Reaction of amino acid using ninhydrin and biuret reagent?

Last Answer : What is the answer ?

A protein reacts with biuret reagent which indicates 2 or more (A) Blood clotting (B) Peptide bond (C) Disulphide bonds (D) Hydrophobic bonds

Description : A protein reacts with biuret reagent which indicates 2 or more (A) Blood clotting (B) Peptide bond (C) Disulphide bonds (D) Hydrophobic bonds

Last Answer : Answer : B

Thiol group of cysteine gives red colour with (A) Sodium acetate (B) Lead acetate (C) Sodium nitroprusside (D) Barfoed’s reagent

Description : Thiol group of cysteine gives red colour with (A) Sodium acetate (B) Lead acetate (C) Sodium nitroprusside (D) Barfoed’s reagent

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Guanidine group of argentine gives positive test with (A) Lead acetate (B) Sakaguchi reagent (C) Tricholoroacetic acid (D) Molisch’s reagent

Description : Guanidine group of argentine gives positive test with (A) Lead acetate (B) Sakaguchi reagent (C) Tricholoroacetic acid (D) Molisch’s reagent

Last Answer : Answer : B

Indole group of tryptophan responses positively to (A) Glyoxylic acid (B) Schiff’s reagent (C) Biuret test (D) Resorcinol test

Description : Indole group of tryptophan responses positively to (A) Glyoxylic acid (B) Schiff’s reagent (C) Biuret test (D) Resorcinol test

Last Answer : Answer : A

N-terminal amino acids of a polypeptide are estimated by (A) Edmann reaction (B) Sanger’s reagent (C) Formaldehyde test (D) Ninhydrine reaction

Description : N-terminal amino acids of a polypeptide are estimated by (A) Edmann reaction (B) Sanger’s reagent (C) Formaldehyde test (D) Ninhydrine reaction

Last Answer : Answer : A

Proteins react with biuret reagent which is suggestive of 2 or more (A) Hydrogen bonds (B) Peptide bonds (C) Disulphide bonds (D) Hydrophobic bonds

Description : Proteins react with biuret reagent which is suggestive of 2 or more (A) Hydrogen bonds (B) Peptide bonds (C) Disulphide bonds (D) Hydrophobic bonds

Last Answer : Answer : B

The useful reagent for detection of amino acids is (A) Molisch reagent (B) Dichlorophenol Indophenol (C) Ninhydrin (D) Biuret

Description : The useful reagent for detection of amino acids is (A) Molisch reagent (B) Dichlorophenol Indophenol (C) Ninhydrin (D) Biuret

Last Answer : Answer : C

Edman’s reagent contains (A) Phenylisothiocyanate (B) 1-Fluoro-2, 4-dinitrobenzene (C) Dansyl Chloride (D) tBOC azide

Description : Edman’s reagent contains (A) Phenylisothiocyanate (B) 1-Fluoro-2, 4-dinitrobenzene (C) Dansyl Chloride (D) tBOC azide

Last Answer : Answer : A

Sanger’s reagent contains (A) Phenylisothiocyanate (B) Dansyl chloride (C) 1-Fluoro-2, 4-dinitrobenzene (D) Ninhydrin

Description : Sanger’s reagent contains (A) Phenylisothiocyanate (B) Dansyl chloride (C) 1-Fluoro-2, 4-dinitrobenzene (D) Ninhydrin

Last Answer : Answer : C

Primary structure of proteins can be determined by the use of (A) Electrophoresis (B) Chromatography (C) Ninhydrin (D) Sanger’s reagent

Description : Primary structure of proteins can be determined by the use of (A) Electrophoresis (B) Chromatography (C) Ninhydrin (D) Sanger’s reagent

Last Answer : Answer : D

The reagent used to test the presence of starch in leaves is – (1) Fehling's solution (2) Iodine solution (3) Million's reagent (4) Benedict's solution

Description : The reagent used to test the presence of starch in leaves is – (1) Fehling's solution (2) Iodine solution (3) Million's reagent (4) Benedict's solution

Last Answer : (2) Iodine solution Explanation: The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black color.

Alcoholic OH) group can be identified by : (1) Tolien's Reagent Test (2) Esterification Test (3) FeCl3 Test (4) Ozonolysis Reaction

Description : Alcoholic OH) group can be identified by : (1) Tolien's Reagent Test (2) Esterification Test (3) FeCl3 Test (4) Ozonolysis Reaction

Last Answer : (3) FeCl3 Test Explanation: As phenol is an aromatic alcohol, so FeCl3 test is a test for alcohol and esterificaton test is also a test for alcohol. The ferric chloride test is used to determine the presence or absence of phenols in a given sample (for instance natural phenols in a plant extract).

What is Baeyer’s reagent?

Description : What is Baeyer’s reagent?

Last Answer : Alkaline Potassium Permanganate

What is Grignard reagent?

Description : What is Grignard reagent?

Last Answer : Ans. Alkyl magnesium halides

Write the name of reagent use for initating a free radical chain reaction.

Description : Write the name of reagent use for initating a free radical chain reaction. 

Last Answer : Ans: Tertiary Butyle peroxaide. 

What is the composition of Benedictís reagent.

Description : What is the composition of Benedictís reagent.

Last Answer : It contains sodium carbonate, copper sulfate and sodium citrate. In the alkaline medium provided by sodium carbonate, the copper remains as cupric hydroxide. Sodium citrate acts as a stabilising agent to prevent precipitation of cupric hydroxide.

ELISA is used to detect viruses where the key reagent is (a) alkaline phosphatase (b) catalase (c) DNA probe (d) RNase.

Description : ELISA is used to detect viruses where the key reagent is (a) alkaline phosphatase (b) catalase (c) DNA probe (d) RNase.

Last Answer : (a) alkaline phosphatase

The reagent used to distinguish iron(II) chloride and iron (ii) chloride (a)distilled water (b) NaOH (c) dil HCl (d) warm water

Description : The reagent used to distinguish iron(II) chloride and iron (ii) chloride (a)distilled water (b) NaOH (c) dil HCl (d) warm water

Last Answer : (b) NaOH

Benzaldehyde does not react with (a) Tollens' reagent (b) Phenylhydrazine (c) Fehling's solution (d) NaHSO3

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Last Answer : Fehling's solution