aliensbrain
  • Home
  • Study
  • Quizzes
  • 🎤AI Practicefree
  • Notebooks
  • Community
  • Sign in
  • Chemical Reactions
  • When iron nails are placed in blue coloured solution of c...
Multiple choice

When iron nails are placed in blue coloured solution of copper sulphate, the solution turns green. Which type of chemical reaction does it represent?

  1. Decomposition

  2. Displacement

  3. Combination

  4. Oxidation

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The correct answer is (2).

Keep practicing — related questions

  • Blue colour of the copper sulphate solution changes to Green colour when an iron nail is dropped into it du...
  • The elements whose oxides can turn litmus solution blue are
  • In the human eye, cones possess their own characteristic photopigments that respond to a group of colours. ...
  • Which of the following are used to detect the presence of proteins in food? (a) Copper sulphate (b) Iodine ...
  • While travelling in a bus, a boy noticed green patches in almost all the ponds and areas with stagnant wate...
  • Which of the following statements is not correct about electrolysis of aqueous copper sulphate using copper...
  • Which of the following reactions is the most common type of catabolic reaction occurring in animal body?
  • Consider the following facts about nanoparticles. 1. Gold, though an inert metal, becomes very active at na...
Play the full quiz 🎤 Practise this topic out loud

Practice this topic

  • Chemical Compounds and Reactions (505 questions)
Advertisement
© Aliensbrain | all rights reserved
  • About
  • Contact
  • Terms and Condition
  • Privacy Policy