Organic Chem :(

Question 1

Esterfication and the equation

Answer 1

Esterfication is when an alcohol and a carboxylic acid react together in the prescence of a strong acid to form an ester. Many esters have their own distinctive fruit smell. This equation is in an equilibrium

Question 2

Tertiary structure of Amino acid

Answer 2

It’s overall 3D shape that forms as a result of folding and bonding back on itself.various bonds such as disulfide bridges, hydrogen bonds, dipole-dipole, disperson forces and ionic bonds cause this to occur

Question 3

Answer 3

Esters(-oate)

Question 4

Answer 4

Alkenes(-ene)

Question 5

Define Amino acid

Answer 5

Amino acids are the building blocks of protein

Question 6

Oxidation of a primary alcohol

Answer 6

• Primary alcohol ->Aldehyde(limited Cr₂O₇^2-/H⁺ + cold)
• Aldehyde->Carboxylic acid(Cr₂O₇^2-/H⁺ + heat or MnO₄^-/H⁺)
• Primary alcohol->Carboxylic acid( MnO₄^-/H⁺ or XS Cr₂O₇^2-/H⁺ + heat)

Question 7

Answer 7

Carboxylic acids (-oic)

Question 8

B-pleated sheet

Answer 8

occur when sections of a-amino acid residues have small side chains. Such sections can fit closely alongside one another and become held together via hydrogen bonding

Question 9

Condensation Polymerisation

Answer 9

The joining of individual monomers by the loss of small molecules: H20 or CO2

Question 10

Oxidation of secondary alcohol

Answer 10

• Secondary alcohol->Ketone(Cr₂O₇^2-/H+ or MnO4-/H+)

Question 11

Define structural isomers

Answer 11

Molecules that have the same molecular formula but have different chemical and physical properties

Question 12

Define Polymer

Answer 12

Polymers are very large molecules composed of small repeating structural units

Question 13

Answer 13

Aldehydes(-al)

Question 14

a-helix structure:

Answer 14

Held in place by hydrogen bonds between a lone pair of electrons from the Oxygen atom of C=O, and the polar hydrogen atom of an N-H group four peptide links away

Question 15

Answer 15

Alchols (-ol/hydroxyl-)

Question 16

Secondary Structure of Amino acid

Answer 16

The regular arrangement of various sections of the protein chain.

• a-helix: a coiled section
• B-pleated sheets: corrugated structures

Question 17

Define Primary structure of Amino acid

Answer 17

The specific sequence of individual a-amino acid residues. This is listed from the N-Terminus to the C-Terminus

Question 18

Answer 18

Ketones(-one)

Question 19

Oxidation of tertiary alcohol

Answer 19

• Tertiary alcohol->No reaction

Question 20

Answer 20

Amides(-amide)

Question 21

Answer 21

Amines(-amine/amino-)

Question 22

Metal and Alcohol Reaction

Answer 22

2R–OH(l) + 2Na(s) → H₂(g) + 2R–O^- + 2Na⁺

Question 23

Esterfication decomposition reaction

Answer 23

Ester + H₂O —>(H₂SO₄) carboxylic acid + alcohol

Question 24

Alkene + Water —>(H₂SO_{4) ????}

Answer 24

Alkene + H₂0—>(H₂SO₄) Alcohol