Description : The suitable reagent for the following reactions is
Last Answer : The suitable reagent for the following reactions is A. `LiAlH_(4)` B. `Na//C_2H_(5)OH` C. `H_(2)//Ni` D. `CH_(2)=O //bar(O)H`
Description : The unbalanced chemical reactions given In list I show missing reagent or condition (?) Which are provided in List II. Match List I with List II and s
Last Answer : The unbalanced chemical reactions given In list I show missing reagent or condition (?) Which are provided in List II. ... (P,Q,R,S),(3,4,2,1):}`
Description : `CH_(2)OHCH_(2)CH_(2)COCH_(3)overset("Reagent")rarr` `CH_(2)OHCH_(2)CH_(2)CH_(2)CH_(3)` Suitable reagent for above reaction is :-
Last Answer : `CH_(2)OHCH_(2)CH_(2)COCH_(3)overset("Reagent")rarr` `CH_(2)OHCH_(2)CH_(2)CH_(2)CH_(3)` Suitable reagent for ... /C_(2)H_(5)ONa` C. Red P + HI D. All
Description : Assertion : Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation by a more electropositive metal. Reason : Copp
Last Answer : Assertion : Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation ... : Copper is extracted by hydrometallurgy.
Description : For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a (A) Batch reactor is preferred over a ... a single CSTR for high yield (C) Both (A) and (B) (D) Single CSTR is the most suitable
Last Answer : (C) Both (A) and (B)
Description : A batch reactor is suitable for (A) Achieving cent percent conversion of reactants into products (B) Large scale gaseous phase reactions (C) Liquid phase reactions (D) Obtaining uniform polymerisation products in highly exothermic reactions
Last Answer : (C) Liquid phase reactions
Description : A batch reactor is (A) Suitable for gas-phase reactions on commercial scale (B) Suitable for liquid phase reactions involving small production rate (C) Least expensive to operate for a given rate (D) Most suitable for very large production rate
Last Answer : (B) Suitable for liquid phase reactions involving small production rate
Description : A back mix reactor is (A) Suitable for gas phase reactions (B) Ideal at very low conversion (C) Same as plug flow reactor (PFR) (D) Same as ideal stirred tank reactor
Last Answer : (D) Same as ideal stirred tank reactor
Description : Which of the following reactions is suitable for the preparation of α-amino acids? (a) Schmidt reaction (b) Hofmann's degradation of amides (c) Strecker's synthesis (b) Reduction of nitro compounds
Last Answer : Strecker's synthesis
Description : What reagent is used to test for proteins?
Last Answer : Proteins are detected using Biuret reagent . This turns a mauve or purple colour when mixed with protein.
Description : What is the signal of tolen reagent ?
Last Answer : Tolen reagent signal = [ Ag (No3) 2] 1.
Description : What is Lucas Reagent ?
Last Answer : : A mixture of concentrated HCl and insoluble ZnCl2 is called Lucas reagent.
Description : What is a limiting reagent ?
Last Answer : In a reaction, the number of molecules that do not remain in the reactant is called limiting reactant.
Last Answer : : Alkaline silver nitrate solution is called tolen reagent
Last Answer : Reaction Time Multiple Of the reactant In That Reagent The rest No So Limiting Reagent.
Description : `HNO_(2)` acts as an oxidant with which one of the following reagent :-
Last Answer : `HNO_(2)` acts as an oxidant with which one of the following reagent :- A. `KMnO_(4)` B. `H_(2)S` C. `K_(2)Cr_(2)O_(7)` D. `Br_(2)`
Description : Which reagent (X) is used to convert I to II
Last Answer : Which reagent (X) is used to convert I to II A. `KBr//NaOH` B. `Br_(2)//NaOH` C. `NaHCO_(3)` D. N-Bromo succinamide
Description : In order to prepare a `1^(@)` amine from an alkyl halide with simultaneous addition of one `CH_(2)` group in the carbon chain, the reagent used as sou
Last Answer : In order to prepare a `1^(@)` amine from an alkyl halide with simultaneous addition of one `CH_(2)` group in the ... C_(6)H_(4)(CO)_(2)N^(-)K^(+)`
Description : The best reagent for converting, 2-phenylpropanamide into 1-phenylethanemine is….
Last Answer : The best reagent for converting, 2-phenylpropanamide into 1-phenylethanemine is . A. excess `H_(2)//Pt` B ... `NaBH_(4)`/methanol D. `LiAIH_(4)`/ether
Description : The best reagent for converting 2-phenylpropanamide into 2-phenylpropanamine is….
Last Answer : The best reagent for converting 2-phenylpropanamide into 2-phenylpropanamine is . A. excess `H_(2)` B. ... of red phosphorus D. `LiAIH_(4)` in ether
Description : 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
Last Answer : A sample of water from a river was analyzed for the presence of metal ions and the observations were recorded as given ... C. `Li^(+)` D. `Mg^(2+)`
Description : An appropriate reagent for the conversion of 1-propanol to 1-propanal is
Last Answer : An appropriate reagent for the conversion of 1-propanol to 1-propanal is A. acidified potassium ... . pyrindium chlorochromate D. acidified `CrO_(3)`
Description : Sodium nitroprusside `Na_(2)[Fe(CN)_(5)NO]` is used as a reagent for the detection of
Last Answer : Sodium nitroprusside `Na_(2)[Fe(CN)_(5)NO]` is used as a reagent for the detection of A. sulphur B. nitrogen C. bromine D. iodine.
Description : Match the reagent which are used in qualitative analysis of given anions :
Last Answer : Match the reagent which are used in qualitative analysis of given anions :
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
Description : Nucleophilic part of the reagent attacks the substrate `CH_(3)CH_(2)COCH_(3)` on the :
Last Answer : Nucleophilic part of the reagent attacks the substrate `CH_(3)CH_(2)COCH_(3)` on the : A. carbon atom ... group C. methyl group D. `CH_(2)` group
Description : Which of the following sequence of reagent is the good mean to furnish the conversion? `R-CH_(2)OHrarr R -CH_(2)NH_(2)`
Last Answer : Which of the following sequence of reagent is the good mean to furnish the conversion? `R-CH_(2)OHrarr R -CH_(2) ... D. `Cu,300^(@)C,NH_(2),LiAiH_(4)`
Description : Assertion: Phosphorus tribromide is ofter preferred as a reagent for the transformation of an alcohol to the corresponding alkyl bromide Reason: The n
Last Answer : Assertion: Phosphorus tribromide is ofter preferred as a reagent for the transformation of an alcohol to ... D. Assertion is false, Reason is true
Description : How many of the following compounds would give turbidity with lucas reagent without heating (1) Benzyl alcohol (2) Allyl alcohol (3) Cyclohexanol (4)
Last Answer : How many of the following compounds would give turbidity with lucas reagent without heating (1) ... methyl carbionol (9) P-Nitro benzyl alcohol
Description : `CH_(3) - underset(CH_(3))underset(|)(CH) - CH = CH_(2) overset("Reagent R")rarr` Alcohol Which is true about alcohol and R ?
Last Answer : `CH_(3) - underset(CH_(3))underset(|)(CH) - CH = CH_(2) overset("Reagent R")rarr` Alcohol Which is true about ... ) - CH_(2)CH_(3)` dil. `H_(2)SO_(4)`
Description : 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
Last Answer : Which is the best reagent to convert isopropyl alcohol to isopropyl bromide ? `CH_(3)- overset(CH_(3))overset(|)(CH ... )` C. `Br_(2)` D. `CH_(3)MgBr`
Description : Which the following is Lucase reagent
Last Answer : Which the following is Lucase reagent A. ammonical silver nitrate B. `Br_(2)//C Cl_(4)` C. an `ZnCl_(2)//`con.HCl D. alk. `KMnO_(4)`
Description : Which reagent does not give oxygen as one of the product during oxidation with ozone?
Last Answer : Which reagent does not give oxygen as one of the product during oxidation with ozone? A. `SO_(2)` B. `SnCl_(2)//HCl` C. `H_(2)S` D. both 1 & 2
Description : 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?
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.
Description : In the reaction M g C I 2 plus 2 KO H - and gt MG OH 2 plus 2 K CI if 1 mole Mg CI 2 is added to 3 moles KO H what is the limiting reagent?
Last Answer : Feel Free to Answer
Description : What are the Reaction of amino acid using ninhydrin and biuret reagent?
Last Answer : What is the answer ?
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
Description : Thiol group of cysteine gives red colour with (A) Sodium acetate (B) Lead acetate (C) Sodium nitroprusside (D) Barfoed’s reagent
Last Answer : Answer : C
Description : Guanidine group of argentine gives positive test with (A) Lead acetate (B) Sakaguchi reagent (C) Tricholoroacetic acid (D) Molisch’s reagent
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
Description : N-terminal amino acids of a polypeptide are estimated by (A) Edmann reaction (B) Sanger’s reagent (C) Formaldehyde test (D) Ninhydrine reaction
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
Description : The useful reagent for detection of amino acids is (A) Molisch reagent (B) Dichlorophenol Indophenol (C) Ninhydrin (D) Biuret
Description : Edman’s reagent contains (A) Phenylisothiocyanate (B) 1-Fluoro-2, 4-dinitrobenzene (C) Dansyl Chloride (D) tBOC azide
Description : Sanger’s reagent contains (A) Phenylisothiocyanate (B) Dansyl chloride (C) 1-Fluoro-2, 4-dinitrobenzene (D) Ninhydrin
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
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.
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).
Description : What is Baeyer’s reagent?
Last Answer : Alkaline Potassium Permanganate
Description : What is Grignard reagent?
Last Answer : Ans. Alkyl magnesium halides