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level: Level 1 of Thing I didn't know but need too

Questions and Answers List

level questions: Level 1 of Thing I didn't know but need too

QuestionAnswer
if a compound has more OH's then it ismore soluble due to hydrogen bonding
Sigma bond are stronger or weaker thanstronger than Pi bonds
Chiral carbon4 different attachements
Ketone has to be where in carbon chainmiddle
An acid hydrolysis causedesters double bond to carboxylic acid NH2 in amino to NH3+
ALKALINE hydrolysisester linkage goes to 0- plus salt ion NH2 - NH3
Purification of a solidDissove compound in minimum amount of HOT soluvent allow to cool and recrystalise and then filter with reduced pressure wash with cold soluvent to remove impurities
Purification of a liquidAdd a neutralysing agent to a separating funnel organic layer on top , remove aqueous lYER add a drying anhydrous agent
Test for alkenebromine water . orange to colourless( decolourises)
Haloaklane chemical testAGNO3 cl-white br-cream i - yellpw
Test for carbonyl24DNP orange precipitate
AldehydeTollens reagent silver mirro
primary , secondary alcohols and aldehyde chemical testK2CR207/ H+ orange to green
qwCarboxylic acidsodium carbonate , effervencense
Complete combustion equationfuel + o2 = CO2 + H20
complete combustion hacknumber of carbons in fuel is number of CO2
incomplete combustion equationfuel + o2 = CO + H20
Branching leads tomore surface contact points so less energy required to break IMF
Si(CH3)4TMS
is phenol more electron dense than benzeneyes
if something is more electron dense thenmore succeptable for an electrophille attack
Rate of hydrolysis dependsmore reactive the halogen the longer hydrolysis as more energy needed
What does Cahn Ingold Prelog saypriority groups on opposite side of double bond
Is major product formed in the least or most quanitymost as more stable carbocation
Simarilities and Differences between Kekule and delocalised benzeneS- both have sidways p orbitals D- Delocalised believe p orbitals above and below double bond -
Evidence of delocalised modelcarbon bonds all same length does not decolourise in bromine water
Optical isomersTetrahedral the 4 bonds around the chiral carbon
Multiple choice complete combustionwrite Hydrogen in fuel to hydrogen in water ratio then work out moles of water to ratio to moles of carbob H20/fuel
Structural isomersame molecular formula and different structural