Question

-methylhexane C) heptane B) 3-methylhexane D) methylhexane 39. Denaturation of a protein A) changes the primary structure of a protein. B) disrupts the secondary. tertiary or quaternary structure of a protein. C) is always irreversible. D) hydrolyzes peptide bonds. 40. The carbonyl group consists of A) a carbon-Oxygen-hydrogen structure. B) a carbon-Oxygen single bond. c) a carbon-Oxygen double bond. D) a carbon-oxygen triple bond. 41. The addition of hydrogen to an organic compound or the loss of oxygen is called A) reduction B) oxidation. C) dehydration. D) halogenation. 42. What is the major product of the reaction shown below? CH3-CH2-CH=CH2 + HOH H. CH HC Y OH HCT A) OH HC CH₂ bytobusa HC H onosno Dj OH 43. Chirality occurs when stereoisomers have mirror images that are A) superimposable. B) the same. C) not superimposable. D) not visible to one another. 44. What type of alcohol undergoes oxidation to yield a ketone? A) primary alcohol B) both primary and secondary alo C) secondary alcohol D) all classes of alcohols sw bu

Answer 1

*********ANS-39. [B]

Denaturation of proteins involves the disruption and possible destruction of both the secondary and tertiary structures. Since denaturation reactions are not strong enough to break the peptide bonds, the primary structure (sequence of amino acids) remains the same after a denaturation process.

*********ANS-40. [C]

In organic chemistry, a carbonyl group is a functional group composed of a carbon atom double-bonded to an oxygen atom: C=O. It is common to several classes of organic compounds, as part of many larger functional groups. A compound containing a carbonyl group is often referred to as a carbonyl compound.

**********ANS-41.[A]

REDUCTION [ GAIN OF HYDROGEN AND LOSS OF OXYGEN]

***********ANS-42. [B] ADDITION OF WATER ON ALKENE BASED ON Markovnikov's rule ]

**********ANS-43.[C]Stereoisomers are isomers that differ in spatial arrangement of atoms, rather than order of atomic connectivity. One of their most interesting type of isomer is the mirror-image stereoisomers, a non-superimposable set of two molecules that are mirror image of one another. The existence of these molecules are determined by concept known as chirality.

***********ANS-44.[C]the oxidation of secondary alcohols (R¹R²CH-OH) normally terminates at the ketone (R¹R²C=O) stage.

THANK YOU VERY MUCH HOPE THIS WILL HELP YOU