Description : Which of the following describes the side chain of Leucine? (a) ethyl group (b) isopropyl group (c) sec-butyl group (d) isobutyl group
Last Answer : isobutyl group
Description : Which of the following describes the side chain for Alanine? (a) hydrogen (b) ethyl group (c) methyl group (d) isopropyl group
Last Answer : methyl group
Description : Hydroboration-oxidation of propene gives : (a) Isopropyl alcohol (b) n-Propyl alcohol (c) Isobutyl alcohol (d) tert-Butyl alcohol
Last Answer : n-Propyl alcohol
Description : Diethyl ether on heating with excess concentrated HI gives (a) Methyl iodide (b) Isopropyl iodide (c) Ethyl iodide (d) n-Propyl iodide
Last Answer : Ethyl iodide
Description : Grain alcohol is another name for (a) Methyl alcohol (b) Isopropyl alcohol (c) Ethyl alcohol (d) n-Propyl alcoho
Last Answer : Ethyl alcohol
Description : Which compound reacts most rapidly by an SN1 mechanism? (a) Methyl chloride (b) Isopropyl chloride (c) Ethyl chloride (d) tert-Butyl chloride
Last Answer : tert-Butyl chloride
Description : The amino acid with a nonpolar side chain is (A) Serine (B) Valine (C) Asparagine (D) Threonine
Last Answer : Answer : B
Description : Which of the following reagents can distinguish ethyl methyl either from isopropyl alcohol ?
Last Answer : Which of the following reagents can distinguish ethyl methyl either from isopropyl alcohol ? A. `Br_(2)CCl_(4)` B. ` ... ` D. `CuCl//NH_(4)^(+)OH^(-)`
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
Description : What type of an alkyl group is an isobutyl group? (a) primary (b) secondary (c) tertiary (d) none of these
Last Answer : none of these
Description : The structure of isobutyl group in an organic compound is
Last Answer : The structure of isobutyl group in an organic compound is A. `CH_(3)-underset(CH_(3))underset(|)overset(CH_(3)) ... . `CH_(3)CH_(2)CH_(2)CH_(2^(-))`
Description : In the B chain of insulin molecule, the C-terminal amino acid: (A) Threonine (B) Tyrosine (C) Glutamate (D) Valine
Last Answer : Answer : A
Description : In the A chain of insulin molecule the Cterminal amino acid is (A) Asparagine (B) Threonine (C) Valine (D) Tyrosine
Description : In A chain of the insulin molecule the Nterminal amino acid is (A) Glycine (B) Valine (C) Serine (D) Phenylalanine
Description : Which amino acid is present at 6th position of β-chain of Hbs instead of glutamate in HbA? (A) Cysteine (B) Valine (C) Aspartate (D) Glutamate
Description : Branched chain amino acids are (A) Cysteine and cystine (B) Tyrosine and Tryptophan (C) Glycine and Serine (D) Valine, Leucine and Isoleucine
Last Answer : Answer : D
Description : All the following are branched chain amino acids except (A) Isoleucine (B) Alanine (C) Leucine (D) Valine
Description : . Sickle-cell anaemia is (a) caused by substitution of valine by glutamic acid in the beta globin chain of haemoglobin (b) caused by a change in a single base pair of DNA (c) characterized by elongated sickle like RBCs with a nucleus (d) an autosomal linked dominant trait.
Last Answer : (b) caused by a change in a single base pair of DNA
Description : Sickle cell anemia is caused a) When valine is replaced by glutamic acid in beta polypeptide chain b) When glutamic acid is replaced by valine in beta polypeptide chain c) When ... valine in alpha polypeptide chain d) When valine is replaced by glutamic acid in alpha polypeptide chain
Last Answer : b) When glutamic acid is replaced by valine in beta polypeptide chain
Description : What is the major organic product of the reaction between benzene and isobutyl chloride in the presence of AlCl3? (a) tert-butylbenzene (b) isobutylbenzene (c) n-butylbenzene (d) chlorobenzene
Last Answer : tert-butylbenzene
Description : Optical isomerism is shown by (a) n-Butyl chloride (b) sec-Butyl chloride (c) tert-Butyl chloride (d) Isobutyl chloride
Last Answer : sec-Butyl chloride
Description : Electrostatic bonds can be formed between the side chains of (A) Alanine and leucine (B) Leucine and valine (C) Asparate and glutamate (D) Lysine and aspartate
Description : A minimum boiling azeotrope is exemplified by (A) Toluene-benzene (B) Acetone-carbon disulphide (C) Water-isobutyl alcohol (D) None of these
Last Answer : (B) Acetone-carbon disulphide
Description : When acetone is added in a two layer mixture of methyl isobutyl ketone and water at 30°C, the acetone distributes between the two layers and the composition of the layer follows two solubility curves. For this system ... at the concentration of the plait point (D) All (A), (B) and (C
Last Answer : (D) All (A), (B) and (C
Description : Ethanol on heating with concentrated H2SO4 at 170°C gives (a) ethylene (b) ethyl hydrogen sulfate (c) diethyl ether (d) diethyl sulfate
Last Answer : ethylene
Description : Ethyl alcohol can react with concentrated H2SO4 to give (a) Ethylene (b) Diethyl ether (c) Ethyl hydrogen sulfate (d) All of these
Last Answer : All of these
Description : Benzene undergoes Friedel-Crafts reaction with isopropyl alcohol in the presence of H2SO4 catalyst to give (a) n-Propylbenzene (b) Benzophenone (c) Isopropylbenzene (d) Nothing happens
Last Answer : Isopropylbenzene
Description : Isopropyl alcohol can be converted to acetone by treatment with (a) HCl/ZnCl2 (b) Na2Cr2O7/H2SO4 (c) NaOH (d) LiAlH4
Last Answer : Na2Cr2O7/H2SO4
Description : Isopropyl alcohol reacts with acidic sodium dichromate to give (a) Acetaldehyde (b) Acetic acid (c) Propionic acid (d) Acetone
Last Answer : Acetone
Description : Which of the following compounds will react with methylmagnesium bromide to give tert-butyl alcohol? (a) Acetyl chloride (b) Acetone (c) Isopropyl alcohol (d) Acetaldehyde
Description : Isopropyl bromide reacts with alcoholic KOH to give (a) Propene (b) Isopropyl alcohol (c) Propane (d) n-Propyl alcohol
Last Answer : Propene
Description : A compound reacts with steam in the presence of concentrated H2SO4 to give isopropyl alcohol. The compound could be (a) Alkane (b) Alkyne (c) Alkene (d) Allene
Last Answer : Alkene
Description : Propene reacts with HBr in the presence of a peroxide to give (a) n-Propyl bromide (b) Allyl bromide (c) Isopropyl bromide (d) Vinyl bromide
Last Answer : n-Propyl bromide
Description : For reactions of ethylbenzene, the ethyl group is considered : (a) ortho director (b) ortho-para director (c) meta director (d) ortho-meta director
Last Answer : ortho-para director
Description : Assertion (A): Diethyl ether reacts with hot Conc `H_(2)SO_(4)` and gives ethyl hydrogen sulphate Reason (R): The reaction involves cleavage of C-O bo
Last Answer : Assertion (A): Diethyl ether reacts with hot Conc `H_(2)SO_(4)` and gives ethyl hydrogen sulphate Reason (R ... R is false D. A is false but R is true
Description : In fermentation reactions occurring in yeast, two products of metabolism are ______ and ______. a. Acid; Hydrogen Gas b. Hydrogen Gas; Sucrose c. Ethyl Alcohol; Methane d. Carbon Dioxide; Ethyl Alcohol
Last Answer : a. Acid; Hydrogen Gas
Description : Which of the following statements best describes the difference between amylose and amylopectin? (a) Amylose is a branched polysaccharide while amylopectin is a chain polysaccharide. (b) Amylose is a ... of thousands of D-glucose units while amylopectin is composed of thousands of D-galactose units.
Last Answer : Amylose is a straight-chain polysaccharide while amylopectin is a branched polysaccharide
Description : Which of the following statements best describes the structure of waxes? (a) long-chain unsaturated carboxylic acids (b) long-chain saturated carboxylic acids (c) long-chain esters (d) short-chain esters
Last Answer : long-chain esters
Description : I'm allergic to isopropyl alcohol. Do you think I can still get my ears pierced?
Last Answer : answer:I wonder if you could use peroxide or betadine (though that would stain) instead of alcohol when you get the piercing. Maybe have it done at a doctor's office? Afterward, you ... strong can irritate the piercing. A mild, fragrance-free liquid soap-preferably anti-microbial or germicidal.
Description : Does 0.5% nacl in isopropyl alcohol conduct electricity?
Last Answer : answer:Isopropyl alcohol marketed in drug stores is generally in solution with H20. Typical alcohol percentages range form 70 to 91%. Pure water is a very poor electrical conductor, but the addition of ... and Cl - ions, which readily carry an electrical charge. Hope this helps explain the results.
Description : Does an allergy to isopropyl alcohol mean anything about my chances of being allergic to alcoholic beverages?
Last Answer : Pretty much the same name. I wouldn’t worry. I know this because I looked into getting drunk from rubbing alcohol.
Description : What single isomer would be found in greatest yield when isopropyl chloride undergoes a Friedel-Crafts alkylation with t-butylbenzene ?
Last Answer : What single isomer would be found in greatest yield when isopropyl chloride undergoes a Friedel-Crafts ... o-isopropyl-t-butylbenzene D. none of these
Description : Addition of `HI` on the double bond of propene yields isopropyl iodide and not n-propyl iodide as the major product. This is because the addition proc
Last Answer : Addition of `HI` on the double bond of propene yields isopropyl iodide and not n-propyl iodide as the ... D. none of the above is a correct statement
Description : IUPAC name of methyl isopropyl ether is
Last Answer : IUPAC name of methyl isopropyl ether is A. 2-methoxy propane B. 3- methoxy propane C. Ethoxy ethane D. Methoxy ethane
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 : Can I use isopropyl alcohol pad on a cut?
Last Answer : What is the answer ?
Description : The excessive and chronic use of which of the drug cause uncontrollable trembling, unable to converse, and a victim of terrifying hallucinations? (a) Ethanol (b) Methanol (c) Isopropyl alcohol (d) Codeine
Last Answer : Ans:(a)
Description : What is the mechanism of inhibitory action of Di-isopropyl fluoro phosphate?
Last Answer : It inhibits enzymes with serine in their active centres, e.g. acetylcholine esterase.
Description : Which of the following solvents is used for the extraction of H3PO4 from CaCl2 solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching? (A) Isopropyl alcohol (B) Butyl alcohol (C) Toluene (D) Hexane
Last Answer : (B) Butyl alcohol
Description : Isopropyl benzene produced by alkylation of benzene with propylene is known as (A) Neoprene (B) Cumene (C) Gelatin (D) Mercaptans
Last Answer : (B) Cumene