ICSE Class 9th Chemistry – Chemical changes and reactions MCQs
In a precipitation reaction, one of the products formed is ____.
Correct!
Wrong!
In a precipitation reaction, aqueous solution of two salts react and one of the products formed is a precipitate, which is an insoluble salt.
When iron nails are dropped in a copper sulphate solution, then ____.
Correct!
Wrong!
When iron nails are dropped in copper sulphate the blue colour changes to green. Iron, being more reactive than copper displaces copper from the copper sulphate solution.
ICSE Class 9th Chemistry - Chemical changes and reactions MCQs
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