Adithya ,a grade 8 student investigated the reactivity of four metals

1.	Adithya ,a grade 8 student investigated the reactivity of four metals ,iron,copper,zinc and an unknown metal X.He arranged three experimental set -ups as shown in the diagram and observe the changes carefully.If reaction occurs in all three beakers , then the metal X is. a) Cu b) Mg c) Fe d) Au A.
Answer» Answer: a) It COULD be Copper Explanation: As there are THREE metals it may be POSSIBLE it it the third one which was not mentioned in the other two BEAKERS .

Adithya ,a grade 8 student investigated the reactivity of four metals ,iron,copper,zinc and an unknown metal X.He arranged three experimental set -ups as shown in the diagram and observe the changes carefully.If reaction occurs in all three beakers , then the metal X is. a) Cu b) Mg c) Fe d) Au A.

Answer»

Answer:

a) It COULD be Copper

Explanation:

As there are THREE metals it may be POSSIBLE it it the third one which was not mentioned in the other two BEAKERS .