U4AOS1 (with some U3AOS2)

Which of the following changes made to a chemical

reaction would result in a greater proportion of

successful collisions between reactant particles?

I addition of a catalyst

II crushing a solid reactant into a powder

III increasing the temperature

• I and II only

• I and III only

• II and III only

• I, II and III

Tags

NGSS.HS-PS1-5

Which one of the following changes will decrease

the concentration of the products but increase the

equilibrium yield of the reaction?

• Add a catalyst

• Add water

• Decrease the temperature

• Add reactant A

Tags

NGSS.HS-PS1-5

What is the systematic name for CH3CH2CH2CH(CH3)2?

• 1,1-dimethylbutane

• 2-methylpentane

• 2-methylpentene

• 1-methylpentane

Which of the following compounds would be expected

to have the lowest boiling point?

• CH3CH2CH2OH

• CH3CH2CH2CH3

• CH3CH2CH2Cl

• CH3CH2CH3

Tags

NGSS.HS-PS1-3

When starch is formed from glucose, the condensation

reaction that occurs involves:

• a carboxyl functional group and an amino functional

  group

• two hydroxyl functional groups

• a hydroxyl functional group and a carboxyl

  functional group

• a hydroxyl functional group and an amino functional

  group.

When a polypeptide chain is formed, the condensation

reaction that occurs involves:

• a carboxyl functional group and an amine

  functional group

• two hydroxyl functional groups

• a hydroxyl functional group and a carboxyl

  functional group

• a hydroxyl functional group and an amine

  functional group.

The linkages (functional groups) by which fatty acids

are joined to glycerol molecules are called:

• fatty acid links

• peptide links

• ether links

• ester links.

Which of the following statements are true of the

homologous series of primary alcohols?

• I and II

• II and III

• I and III

• I, II and III

Which of the following alternatives is the product

formed by the reaction of CH2CH2 with Br2

• CH2BrCH2Br

• CH2CHBr

• CH3CH2Br

• CHBrCHBr

What reactions occur in steps I, II and III of the pathway?

• addition, substitution, oxidation

• chlorination, substitution, addition

• substitution, addition, hydrolysis

• addition, reduction, hydrolysis