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Chemistry

GCSE · Edexcel

QuestionsFlashcards

Group 1
- Group 1 (Alkali Metals)
  6
- Group 1: Reactivity & Electronic Configurations
  6
Group 7
Group 0

Qualitative Analysis: Tests for Ions
Hydrocarbons
Polymers
Alcohols & Carboxylic Acids
Bulk & Surface Properties of Matter Including Nanoparticles
- Nanoparticles
  7
- Ceramics, Polymers, Composites & Metals
  5

Acids & Bases Flashcards

All 6 cards in this deck

What ion do all acids produce when dissolved in water?: Hydrogen ions, $\mathrm{H^+}$ .
What ion do all alkalis produce when dissolved in water?: Hydroxide ions, $\mathrm{OH^-}$ .
What colour is litmus in acidic and in alkaline solutions?: Red in acid, blue in alkali (purple in a neutral solution).
What colour is methyl orange in acidic and in alkaline solutions?: Red in acid, yellow in alkali (yellow in a neutral solution).
What colour is phenolphthalein in acidic and in alkaline solutions?: Colourless in acid, pink in alkali (colourless in a neutral solution).
True or false? Phenolphthalein turns pink in acidic solutions.: False. It is colourless in acid and pink in alkali.