A decapeptide (Molecular weight 796) on complete hydrolysis gives glycine (Molecular weight 75), alanine and phenylanine. Glycine contributes 47.0 % to the total weight of the hydrolysed products. The number of glycine units present in the decapeptide is
1 Answers
Talk Doctor Online in Bissoy App
Explain the following: i) Beta-1,3-diene gives 1,2- and 1,4-addition products. ii) Addition of HBr to `H_(2)C=CHCH_(2)C-=CH` gives `CH_(3)CHBrCH_(2)C-
ii) The addition occurs at double bond because isolated double bond is more reactive than an isolated triple bond in electrophilic additions. iii) Electron releasing alkyl groups make pi-bond more...
2 Answers 1 views
A current of 1.34A exists in a copper wire of cross-section `1.0mm^(2)`. Assuming eac copper atom contributes one free eectron. Calculate the drift sp
Mass of `1m^(3)` volume of the copper is `=8990 kg=8990xx10^(3)g` Number of moles in `1m^(3)=(8990xx10^(3))/(63.5)=1.4xx10^ (5)` Since each mole contains `6xx10^(23)` atoms therefore number of atoms in `1m^(3)` `n=(1.4xx10^(5))xx(6xx10^(23))` `=8.4xx10^(28)`...
2 Answers 1 views
A copmpound X with seven carbon atoms on treatment with `Br_(2)` and KOH gives Y, Y gives carbylamine test and upon diazotisation and coupling gives a
Since Y gives coupling reaction after diazotization, it suggest that Y can be anline or benzene ring subsitututed anline, Since Y has been obtained from Hofmann bromamide it means it...
2 Answers 1 views
Equal weight of X (atomic weight = 36) and Y(atomic weight = 24) are reacted to form compound `X_(3)Y_(5)`, which of the following is/are correct?
Correct Answer - B::D `{:(,3X,+,5YrarrX_(3)Y_(5),,),("Mass","ag",,"ag",,),("Mole",(a)/(36),,(a)/(24),,),("Mole",(a)/(36)xx(1)/(3),,(a)/(24)xx(1)/(5),"Y is the limiting reagent",):}` `therefore " Mass of "X_(3)Y_(5)=(1)/(5)xx((a)/(24))(36xx3+5xx24)=1.9a`
2 Answers 1 views
One mole of an organic amide (A) on alkaline hydrolysis gives one mole of `NH_(3)` and one mole of a monobasic acid of equivalent mass 74. What is the
`R-overset(O)overset(||)C-NH_(2)+OH^(-)toR-overset(O)overset(||)C-O^(-)+NH_(3)` R+45=74orR=29i.e., `CH_(3)CH_(2)-` Monobsic acid=`CH_(3)CH_(2)COOH,` Mol. Mass=`CH_(3)CH_(2)CONH_(2)=73`
2 Answers 2 views
A tetrapeptide has `-COOH` group on alanine. This produces glycine (Gly), valine (Val), phenyl alanine (Phe) and alanine (Ala), on complete hydrolyses
Correct Answer - `4`
2 Answers 1 views
X persons can complete a work in Y days. Then, 3X persons can complete the same work in ……….. Days and `(x)/(3)` persons can complete the same work in
Correct Answer - `(Y)/(3)`,3Y
2 Answers 1 views
A mixture of CuS (molecular weight = `M_(1)`) and `Cu_(2)S` (molecular weight `=M_(2)`) is oxidised by `KMnO_(4)` (molecular weight `=M_(3)`) in acidi
Correct Answer - `(M_(1))/(6), (M_(2))/(8), (M_(3))/(5)`
2 Answers 1 views
Ramakanth draws a salary of Rs. 15,000 per month. He contributes Rs. 5000 per month towards PPF. He also donates Rs. 1250 per month towards medical re
Correct Answer - Rs.8400
2 Answers 2 views
Identify the markets highlighted in following statements: (i) This market directly contributes to capital market. (ii) This market deals in instrument
Correct Answer - (i) Primary (ii) Money Market (iii) Capital Market (iv) Secondary Market (v) Stock Exchange
2 Answers 1 views