Description : Chair form of cyclohexane is more stable than boat form because :
Last Answer : Chair form of cyclohexane is more stable than boat form because : A. In chair form carbons are in staggered form ... ^(@)` and in boat form `111^(@)`
Description : The least stable conformation of cyclohexane is
Last Answer : The least stable conformation of cyclohexane is A. Boat B. Chair C. Twist boat D. Half chair
Description : Which of the following statements is false about cyclohexane? (a) It is a saturated cyclic hydrocarbon (b) All C–C–C bond angles are 109°28' (c) It is very unstable, strained compound. (d) It can exist in two conformations which are designated as the boat-form and the chair-form
Last Answer : It is very unstable, strained compound
Description : Newman projection of Butane is given, C-2 is rotated by `120^(º)` along `C_(2)-C_(3)` bond in anticloclwise direction, the conformation formed is :
Last Answer : Newman projection of Butane is given, C-2 is rotated by `120^(º)` along `C_(2)-C_(3)` ... A. anti B. fully eclipsed C. gauche D. partially eclipsed
Description : What percentage of cyclohexane molecule is estimated to be in the boat form at any given time? (a) over 99% (b) between 90% and 99% (c) approximately 50% (d) less than 1%
Last Answer : less than 1%
Description : Which of the following has two equatorial alkyl substituents in its most stable conformation? (a) 1,1-dimethylcyclohexane (b) cis-1,2-dimethylcyclohexane (c) cis-1,3-diethylcyclohexane (d) cis-1,4-diethylcyclohexane
Last Answer : cis-1,3-diethylcyclohexane
Description : For the compound `A-CH_(2)-CH_(27)-A` draw the newman projection formula of all the stable conformational it `mu_(obs) = 2D " and " X_(anti) = 0.75 "
Last Answer : For the compound `A-CH_(2)-CH_(27)-A` draw the newman projection formula of all the stable conformational it ` ... " mu_(gauche.)("If "A= NO_(2))`
Description : The most stable form of cis cyclohexane -1,3-diol is represented as :1
Last Answer : The most stable form of cis cyclohexane -1,3-diol is represented as :1 A. B. C. D.
Description : In the following the most stable conformation of n-butane is :
Last Answer : In the following the most stable conformation of n-butane is : A. B. C. D.
Description : Answers with Dr. Randal Haworth?
Last Answer : Dr. Randal Haworth reveals his new over-the-counter remedy for heel pain, Biochemistry Heel No Pain.Dr. Randal Haworth is world renowned as a leader, innovator and expert surgeon in the field of plastic surgery ... of Fox's hit television show THE SWAN, a program he was a member of for two seasons.
Description : At a local trade show a purchaser of office equipment discussed the price of a computer work station with a representative of Haworth office furnishings. As a result of the discussion the buyer purchased a ... of industrial pricing is called: A)transfer. B)open bid. C)solicited D)petitioned E)open
Last Answer : D)petitioned
Description : Which of the following statements are false about benzene? (a) It is a planar molecule with bond angles 120°. (b) It is immiscible with water forming the lower layer. (c) It can be ... Ni catalyst. (d) It reacts with ethyl chloride in the presence of aluminium chloride to form ethylbenzene.
Last Answer : It is immiscible with water forming the lower layer
Description : The α-Helix is held in a coiled conformation partially because of : (a) Optical activity (b) Hydrogen bonding (c) Resonance (d) Delocalization
Last Answer : Hydrogen bonding
Description : Which of the following is the quaternary structure of proteins concerned with? (a) sequence of amino acids in the peptide chain (b) description of the way the peptide chains are arranged with ... (c) location of the disulfide bridges in the peptide chain (d) conformation of the protein backbone
Last Answer : description of the way the peptide chains are arranged with respect to each other
Description : Which of the following may characterize the “secondary structure” of proteins? (a) conformation of the protein backbone (b) α-Helix (c) parallel β-pleated sheet (d) all of the above
Last Answer : all of the above
Description : The eclipsed and staggered forms of ethane are said to differ in __________. (a) molecular formula (b) configuration (c) conformation (d) constitution
Last Answer : conformation
Description : Resorcinol on distillation with zinc dust gives (a) Benzene (b) Cyclohexane (c) Toluene (d) m-Xylene
Last Answer : Benzene
Description : Benzene reacts with H2 at 150°C at 30 atm in the presence of Ni catalyst to give (a) Cyclohexane (b) Cyclohexene (c) n-Hexane (d) No reaction occurs
Last Answer : Cyclohexane
Description : An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the ... suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane
Description : The bond angle between carbon atoms in cyclohexane is (a) 60° (b) 90° (c) 109.5° (d) 120°
Last Answer : 109.5°
Description : The bond angle between carbon atoms in cyclohexane is (a) 109°28' (b) 60° (c) 90° (d) 120°
Last Answer : 109°28'
Description : Which of the following molecules will decolorize bromine in carbon tetrachloride most readily? (a) 1,2-Dimethylcyclopropane (b) Cyclopentane (c) 1,2-Dimethylcyclobutane (d) Cyclohexane
Last Answer : 1,2-Dimethylcyclopropane
Description : Which of the following compounds will react most readily with concentrated sulfuric acid? (a) Ethane (b) Cyclohexane (c) Propane (d) Cyclohexene
Last Answer : Cyclohexene
Description : Which of the following cycloalkanes is most reactive? (a) Cyclopropane (b) Cyclohexane (c) Cyclobutane (d) Cycloheptane
Last Answer : Cyclopropane
Description : Which of the following correctly ranks the cycloalkanes in order of increasing ring strain per methylene? (a) cyclopropane < cyclobutane < cyclohexane < cycloheptane (b) cyclohexane < ... < cyclobutane < cyclopentane < cyclopropane (d) cyclopentane < cyclopropane < cyclobutane < cyclohexane
Last Answer : cyclohexane < cyclopentane < cyclobutane < cyclopropane
Description : The 1936 Nobel Prize in chemistry was awarded to Peter J.W. Debye for his studies of: w) kinetic energy of colliding particles x) electron configuration y) dipole moments z) conformations of cyclohexane
Last Answer : ANSWER: Y -- DIPOLE MOMENTS
Description : Newman! Did you hear that the actor Wayne Knight has died?
Last Answer : Also in Jurasic Park I believe.
Description : What was with Randy Newman at the Apple Keynote?
Last Answer : He has been diagnosed with the physically debilitating Epstein-Barr virus.
Description : Do you have any thoughts regarding the passing of legendary actor PAUL NEWMAN?
Last Answer : He is an example to us all of a life well-lived in so many different ways. He made the world a better place, he loved, he had fun.
Description : What are black holes with mass satisfying the Ker-Newman inequality called? -Space
Last Answer : answer:
Description : who is Paul Newman?
Last Answer : Paul Leonard Newman was an American actor, film director, race car driver, and entrepreneur. He was the recipient of numerous awards, including an Academy Award, a BAFTA Award, a Screen Actors Guild Award, and a Primetime Emmy Award.
Description : In the Newman projection for `2,2`- dimethylbutane `X` and `Y` can, respectively, be
Last Answer : In the Newman projection for `2,2`- dimethylbutane `X` and `Y` can, respectively, be A. H and H B. H and ` ... 2)H_(5)` and H D. `CH_(3) and CH_(3)`
Description : The newman projection formula of 2-3, dimethylbutane is given as X,Y respectively can be:
Last Answer : The newman projection formula of 2-3, dimethylbutane is given as X,Y respectively can be: A. `-CH(CH_(3))_(2) " ... )` D. `H" and " -CH(CH_(3))_(2)`
Description : How many eggs did Paul Newman really eat while making the movie?
Last Answer : Need answer
Description : What books are written by Adam T. Newman?
Last Answer : Adam T. Newman wrote the award winning Children's Books, "How to Catch a Cold", "How to Fight a Cold", The Girl who Lost Her Voice", "Kai and Ty Go To Hawaii" and "Eva the Diva".
Description : “Stored Program” concept was developed by ______ (A) Maurice Wilkes (B) Von Neumann (C) M.H.A. Newman (D) None of the Above
Last Answer : (B) Von Neumann
Description : The “morning star of Industrial Revolution” (a) Thomas Newman (b) John James (c) Francis Bacon (d) James Watt
Last Answer : (d) James Watt
Description : The true statement about the following conformation is :
Last Answer : The true statement about the following conformation is : A. It has maximum angle strain. B. It ... bonding. D. It has maximum Vander Waal strain.
Description : The eclipsed and staggered conformation of ethane is due to -
Last Answer : The eclipsed and staggered conformation of ethane is due to - A. Free rotation about C-C single bond ... rotation about C-C bond D. None of the above
Description : 1.The preferred conformation of cis-1,3-dimethylcyclohexane is:?
Last Answer : 14
Description : Lock' and Key' model of enzyme action proposed by Fisher implies that (A) The active site is flexible and adjusts to substrate (B) The active site requires removal of PO4 group ( ... complementary in shape to that of the substrate (D) Substrates change conformation prior to active site interaction
Last Answer : Answer : C
Description : An allosteric enzyme influences the enzyme activity by (A) Competiting for the catalytic site with the substrate (B) Changing the specificity of the enzyme for the substrate (C) Changing the conformation ... binding to a site other than catalytic site (D) Changing the nature of the products formed
Description : Fischer's lock and key' model of the enzyme action implies that (A) The active site is complementary in shape to that of substance only after interaction. (B) The active site is ... change conformation prior to active site interaction (D) The active site is flexible and adjusts to substrate
Last Answer : Answer : B
Description : Both α-helix and β-pleated sheet conformation of proteins were proposed by (A) Watson and Crick (B) Pauling and Corey (C) Waugh and King (D) Y.S.Rao
Description : The following proportion of the ingredients of concrete mix, is not in conformation to arbitrary method of proportioning (A) 1 : 1 : 2 (B) 1 : 2 : 4 (C) 1 : 3 : 6 (D) 1 : 4 : 10
Last Answer : Answer: Option D
Description : Wool breed are judged 60% for their wool, and what percent for their conformation?
Last Answer : 40%
Description : Which of the following is not phase of qualitative research? a. Orientation and overview b. Focused exploration c. Conformation and Closure d. Orientation and closure
Last Answer : a. Orientation and overview
Description : The organophosphates produce irreversible inhibition of cholinesterase because: A. They bind to an allosteric site of the enzyme resulting in unfavourable conformation of esteratic site to bind ... degradation of enzyme molecules D. They are neither metabolized nor excreted from the body
Last Answer : B. Regeneration time of the phosphorylated enzyme is longer than the turnover time of the enzyme molecules