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Acids

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Question 178

A student pipetted a sample of potassium hydroxide (KOHKOHKOH) solution into a conical flask and added a few drops of methyl orange indicator.

Dilute hydrochloric acid (HClHClHCl) was slowly added from a burette until the end point was reached.

What colour change would be observed in the conical flask at the end point of the titration?

yellow to red

red to yellow

pink to colourless

colourless to pink

Acids Questions

  1. GCSE
  2. /Chemistry
  3. /Acids

Practise Edexcel GCSE Chemistry Acids with exam-style questions for Foundation and Higher tier. 276 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank