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Holy Grail is a completely free-to-access web library aimed at Singaporean students that houses all the summary notes and practice papers for GCE 'O' Levels, GCE 'A' Levels and International Baccalaureate.

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Library

Category

Subject

Year

Document Type

Document Name

Document Name

O-Level Pure Chemistry_ Mole Concept & Stoichiometry

Category

GCE 'O' Levels

Subject

Pure Chemistry

Type

Notes/Practices

Year

2026

Uploaded By

Tharini

Uploaded On

8 August 2026

Document Name

6092 O-Level Chemistry Complete Notes (Ch 1-22) Version 1

Category

GCE 'O' Levels

Subject

Pure Chemistry

Type

Notes/Practices

Year

2026

Uploaded By

randomnoob

Uploaded On

25 July 2026

Document Name

Fuels & Crude Oil

Category

GCE 'O' Levels

Subject

Pure Chemistry

Type

Notes/Practices

Year

—

Uploaded By

Tharini

Uploaded On

24 July 2026

Document Name

pure chem notes

Category

GCE 'O' Levels

Subject

Pure Chemistry

Type

Notes/Practices

Year

—

Uploaded By

sigmaboyyyy

Uploaded On

16 July 2026

Document Name

Category

GCE 'O' Levels

Subject

Pure Chemistry

Type

Notes/Practices

Year

—

Uploaded By

Khalid

Uploaded On

8 June 2026

Document Name

2024 Zhenghua Prelim QP

Category

GCE 'O' Levels

Subject

Pure Chemistry

Type

Exam Papers

Year

2024

Uploaded By

Jarrox

Uploaded On

28 April 2026

Document Name

Answer for: 2024 Zhenghua Prelim QP

2024 Zhenghua Prelim MS

Category

GCE 'O' Levels

Subject

Pure Chemistry

Type

Exam Papers

Year

2024

Uploaded By

Jarrox

Uploaded On

28 April 2026

Document Name

Answers: 2024 Zhenghua Prelim MS

2024 Zhenghua Prelim QP

Category

GCE 'O' Levels

Subject

Pure Chemistry

Type

Exam Papers

Year

2024

Uploaded By

Jarrox

Uploaded On

28 April 2026

Document Name

Chemical Energetics simplified

Category

GCE 'O' Levels

Subject

Pure Chemistry

Type

Notes/Practices

Year

—

Uploaded By

ephemeralah

Uploaded On

24 April 2026

Document Name

Category

GCE 'O' Levels

Subject

Pure Chemistry

Type

MYEs/CAs/Other Tests

Year

2024

Uploaded By

ephemeralah

Uploaded On

24 April 2026

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