Structural isomers

Chemia IBPaper 1A, maj 2026, TZ3wzorowane1 pktzamknięteśrednie (szac.)

Zadanie 13

Which of the following are structural isomers of the compound shown? I. 2-methylbut-2-ene II. 2-methylpent-1-ene III. pent-2-ene A. I and II only B. I and III only C. II and III only D. I, II and III

• Materiał graficzny

Chemia IBPaper 1A, maj 2026, TZ1wzorowane1 pktzamknięteśrednie (szac.)

Zadanie 14

Which of these molecules are isomers of each other? I. Butanal II. 2-methylpropan-1-ol III. Butan-2-ol A. I and II only B. I and III only C. II and III only D. I, II and III

Chemia IBPaper 1A, maj 2026, TZ3wzorowane1 pktzamknięteśrednie (szac.)

Zadanie 27

When heated under reflux with excess acidified potassium dichromate(VI), how many of the structural isomers of the alcohol C₅H₁₁OH are oxidized to a carboxylic acid? A. 3 B. 7 C. 4 D. 8

Chemia IBPaper 2, maj 2025, TZ3wzorowane1 pktotwartełatwe (szac.)

Zadanie 4c

Draw the structural formula of one structural isomer of compound Y.

Chemia IBPaper 2, maj 2025, TZ1wzorowane5 pktotwarteśrednie (szac.)

Zadanie 6b

The compound X shown below occurs naturally in cocoa and coffee and is used as a flavouring agent. (i) State the name of the functional group found in compound X. (ii) Deduce the IUPAC name of X. (iii) Draw a structural isomer of X taken from a different…

• Materiał graficzny

Chemia IBPaper 1A, maj 2025, TZ2wzorowane1 pktzamknięteśrednie (szac.)

Zadanie 14

Butanone, CH₃COCH₂CH₃, has the structure shown. One of the following four compounds shares its molecular formula, C₄H₈O, with butanone. Which compound is this structural isomer of butanone? A. CH₃COCH₂CH₂CH₃ B. CH₃CH₂CH₂CHO C.…

• Materiał graficzny

Chemia IBPaper 2, listopad 2025, TZ1wzorowane12 pktotwarteśrednie (szac.)

Zadanie 2b

(i) Oil of vitriol, spirit of hartshorn and wood alcohol are old trivial names still occasionally used for chemical substances, and names like these can be a source of confusion in international scientific communication. Outline how the modern system of naming…

• Materiał graficzny

Chemia IBPaper 2, listopad 2025, TZ3wzorowane5 pktotwarteśrednie (szac.)

Zadanie 3e

A compound used to make polymers, hexanedioic acid, can be produced by a series of reactions starting from cyclohexane. (i) Deduce how reactant A is related to hex-1-ene. (ii) For the C=O functional group present in intermediate C, state its structural…

• Tabela do uzupełnienia
• Materiał graficzny

Chemia IBPaper 1, maj 2024, TZ2wzorowane1 pktzamknięteśrednie (szac.)

Zadanie 27

Which of the following pairs are structural isomers? I. CH₃CH₂CH₂OH and CH₃CH(OH)CH₃ II. CH₃CH₂CHO and CH₃COCH₃ III. CH₃CH₂CH₂CH₃ and CH₃CH=CHCH₃ A. I and II only B. I and III only C. II and III only D. I, II and III

Chemia IBPaper 1, listopad 2024wzorowane1 pktzamknięteśrednie (szac.)

Zadanie 26

How many structural isomers of the alkane with molecular formula C₆H₁₄ exist? A. 3 B. 4 C. 5 D. 6

Chemia IBPaper 1, maj 2023, TZ2wzorowane1 pktzamknięteśrednie (szac.)

Zadanie 25

Which products could be obtained by heating isomers of C₄H₁₀O under reflux with excess acidified potassium dichromate(VI)? I. 2-methylpropanal II. butanone III. butanoic acid A. I only B. II and III only C. I and III only D. I, II and III

Chemia IBPaper 2, listopad 2023, TZ1wzorowane1 pktotwarteśrednie (szac.)

Zadanie 3e

Draw the full structural formula of the carboxylic acid that is a structural isomer of CH₃COOCH₃.

Chemia IBPaper 2, listopad 2023, TZ2wzorowane1 pktotwarteśrednie (szac.)

Zadanie 3e

Draw the full structural formula of a carboxylic acid that is a structural isomer of the ester CH₃CH₂COOCH₃.

Chemia IBPaper 1, listopad 2023, TZ1wzorowane1 pktzamknięteśrednie (szac.)

Zadanie 25

Which pair of compounds are structural isomers? A. CH₃CH₂CH₂OH and CH₃CH₂CHO B. CH₃COOH and CH₃CH₂OH C. CH₃CH₂COOH and CH₃CH₂CH₂COOH D. CH₃COOCH₃ and CH₃CH₂COOH

Chemia IBPaper 1, listopad 2023, TZ2wzorowane1 pktzamknięteśrednie (szac.)

Zadanie 25

Which pair of compounds are structural isomers of each other? A. CH₃CH₂CH₂OH and CH₃CH₂OH B. CH₃CH₂CHO and CH₃CH₂CH₂OH C. CH₃CH₂NH₂ and CH₃CH₂OH D. CH₃CH₂COOH and CH₃COOCH₃

Chemia IBPaper 1, listopad 2023, TZ1wzorowane1 pktzamknięteśrednie (szac.)

Zadanie 26

How are the amine and the alcohol shown classified? A. primary amine and primary alcohol B. tertiary amine and secondary alcohol C. primary amine and secondary alcohol D. secondary amine and secondary alcohol

• Materiał graficzny

Chemia IBPaper 1, listopad 2023, TZ2wzorowane1 pktzamknięteśrednie (szac.)

Zadanie 26

Which option classifies compound X as an amine and compound Y as an alcohol correctly? A. Primary amine and primary alcohol B. Secondary amine and primary alcohol C. Tertiary amine and primary alcohol D. Secondary amine and tertiary alcohol

• Materiał graficzny

Chemia IBPaper 1, maj 2022, TZ2wzorowane1 pktzamknięteśrednie (szac.)

Zadanie 24

How many structural isomers of dichloropentane, C₅H₁₀Cl₂, can be formed by the free-radical substitution of CH₃CH₂CH₂CH₂CH₃ with excess Cl₂ in the presence of UV light? Ignore stereoisomers. A. 5 B. 7 C. 9 D. 12

Chemia IBPaper 1, listopad 2022wzorowane1 pktzamknięteśrednie (szac.)

Zadanie 24

Which of the structures I, II and III are structural isomers of C₄H₈? A. I and II only B. I and III only C. II and III only D. I, II and III

• Materiał graficzny