ਦੇ ਲੋਹੇ ਦੀ ਮੇਨੂੰ ਪਾਰ ਸਲਫੇਟ ਦੇਘੋਲ ਵਿੱਚ ਹੋਇਆ
ਜਾਹਾ ਤਾ ਘੋਲ ਦਾ ਰੰਗ ਕਿਉਂ ਬਦਲ ਜਾਂਦਾ ਹੈ ?
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Explanation:
Always lock your door you leave.
a. after
b. before
c. then.
d. Yet
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Answer:
If an iron nail is dipped in the copper sulphate solution then iron displaces copper from the copper sulphate because iron is more reactive than copper. Therefore the colour of the copper sulphate solution changes
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