Electron Pair Sharing Reactions (HL IB Chemistry)

Isomers X and Y both react with HBr.

 A mixture of X and Y is reacted with HBr.

Which three structures represent three different possible products of this reaction?

In the hydrolysis of bromoethane by aqueous sodium hydroxide, what is the nature of the attacking group and of the leaving group?

In which complexes does iron have an oxidation state of +3? 

1.   [Fe(H₂O)₆]³⁺
2.   [Fe(H₂O)₅(CN)]²⁺
3.   [Fe(CN)₆]³⁻

Ammonia is a stronger ligand than water. Which statement is correct when concentrated aqueous ammonia solution is added to dilute aqueous copper(II) sulfate solution?

Cobalt forms the complex [Co(NH₃)₅Cl]²⁺. Which statements are correct for this complex? 

1.   The cobalt ion acts as a Lewis acid.
2.   The cobalt ion has an oxidation state of +2.
3.   There are 90° bond angles between the cobalt ion and the ligands.

Which of the following statements is not correct?

Which compound will react most readily by an S_N2 mechanism?

An alkene, X, undergoes electrophilic addition with hydrogen bromide to form a halogenoalkane, Y, as the minor product. 

The halogenoalkane, Y , can react with sodium hydroxide in aqueous conditions to form butan-1-ol. 

What is the correct identity of the alkene, X? 

Benzene can undergo nitration to form nitrobenzene. Which of the following statements is not correct?

The synthesis of ethyl butanoate can be carried out in three steps:

                                         I                   II                      III

                        C₄H₉Br   →  C₄H₉OH  →  C₃H₇COOH  →  C₃H₇COOC₂H₅  

What is the correct classification of the steps?

Which of the following reactions produces only pentan-2-ol?

Which compound could be X in this two step reaction pathway?

C₃H₈ → X  → C₃H₇OH

Limonene is an oil formed in the peel of citrus fruits.

Which product is formed when an excess of bromine, Br₂(l), reacts with limonene at room temperature in the dark?

Which compound has an M_r of 84.18 and will react with HBr to give a product with an M_r of 165.09?

Which compound is produced in the reaction between pent-2-ene and steam?

Copper forms the complex [CuCl₄]^2-. Which statements are correct for this complex?

1.   The complex has a tetrahedral shape
2.   The copper ion has a charge of +2
3.   The copper ion acts as a Lewis base

Consider the following equation

AgCl + 2NH₃→ [Ag(NH₃)₂]⁺ + Cl^-

Which of the following statements is correct?

Which molecule can react with both sodium borohydride, NaBH₄, and warm acidified potassium dichromate(VI)?

But-1-ene is reacted first with hydrogen chloride to produce X, which is then reacted with aqueous sodium hydroxide to give Y.

Finally, Y is reacted with excess acidified potassium dichromate solution.

What is the major product, Z? 

Which halogenoalkane will react fastest with a 0.1 mol dm^-3 solution of aqueous sodium hydroxide?

Which statement is correct about the major reaction between 1-bromobutane, CH₃CH₂CH₂CH₂Br, and dilute sodium hydroxide solution, NaOH (aq)?

Which of the following would not be a product of the reaction of pent-1-ene with HCl?

But-1-ene reacts separately with HBr and H₂/ Ni to give products X and Z respectively. 

What are the major products of the reactions?

	X	Z
A.	CH2BrCH2CH2CH3	CH3CH2CCH
B.	CH3CH2CH2CH2OH	CH3CH2CH2CH3
C.	CH3CHBrCH2CH3	CH3CH2CCH
D.	CH3CHBrCH2CH3	CH3CH2CH2CH3