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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

Chapter 9 Salts

Category

GCE 'O' Levels

Subject

Combined Chemistry

Type

Notes/Practices

Year

—

Uploaded By

St4rg1rl

Uploaded On

18 March 2026

Document Name

testing for cations

Category

GCE 'O' Levels

Subject

Combined Chemistry

Type

Notes/Practices

Year

—

Uploaded By

chaogundu

Uploaded On

10 November 2025

Document Name

testing for gases

Category

GCE 'O' Levels

Subject

Combined Chemistry

Type

Notes/Practices

Year

—

Uploaded By

chaogundu

Uploaded On

10 November 2025

Document Name

testing for anions

Category

GCE 'O' Levels

Subject

Combined Chemistry

Type

Notes/Practices

Year

—

Uploaded By

chaogundu

Uploaded On

10 November 2025

Document Name

2025 ZHSS Prelim 4E5N G3 Sc(Chem) Ans

Category

GCE 'O' Levels

Subject

Combined Chemistry

Type

Exam Papers

Year

2025

Uploaded By

currymuncher

Uploaded On

10 November 2025

Document Name

Answer for: CHIJ 2025 Sec 4E5N Prelim Sc...

CHIJ 2025 Sec 4E5N Prelim Sc(Chem) P1 & P3 MS

Category

GCE 'O' Levels

Subject

Combined Chemistry

Type

Exam Papers

Year

2025

Uploaded By

currymuncher

Uploaded On

10 November 2025

Document Name

Answers: 2025 TKGS Sec 4 Sci (Chem) Prel...

2025 TKGS Sec 4 Sci (Chem) Prelim Paper 1

Category

GCE 'O' Levels

Subject

Combined Chemistry

Type

Exam Papers

Year

2025

Uploaded By

currymuncher

Uploaded On

10 November 2025

Document Name

Answers: CHIJ 2025 Sec 4E5N Prelim Sc(Ch...

CHIJ 2025 Sec 4E5N Prelim Sc(Chem) P1 (final)

Category

GCE 'O' Levels

Subject

Combined Chemistry

Type

Exam Papers

Year

2025

Uploaded By

currymuncher

Uploaded On

10 November 2025

Document Name

2025 YTSS Prelim 4E5N G3 Sc(Chem) P1

Category

GCE 'O' Levels

Subject

Combined Chemistry

Type

Exam Papers

Year

2025

Uploaded By

currymuncher

Uploaded On

10 November 2025

Document Name

Answer for: 2025 TKGS Sec 4 Sci (Chem) ...

2025 TKGS Sec 4 Sci (Chem) Prelim Paper 1 - Answers

Category

GCE 'O' Levels

Subject

Combined Chemistry

Type

Exam Papers

Year

2025

Uploaded By

currymuncher

Uploaded On

10 November 2025

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