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Subject :NSO    Class : Class 7

Kirti kept a metal spoon in a glass jar filled with pickle for a few days. She observed that there were holes in the spoon. What could be the possible reason for this?

A Oil present in pickle dissolves the metal.
B Oil present in pickle liberates a gas in which metal gets dissolved.
C Metal reacts with acid present in pickle to form salt hence, metal gets dissolved.
D The glass reacts with metal to give acid which dissolves the metal.


i didnt get this . answer says acid reacts with metal to form salt but acid reacts with metal to form hydrogen can you help me ?

Ans 1:

Class : Class 7
Answer is C as metal react with acid to form salt and hydrogen both

Ans 2:

Class : Class 7

Ans 3:

Class : Class 7
C Metal reacts with acids

Ans 4:

Class : Class 7
answer is C

Ans 5:

Class : Class 7
C Metal reacts with acids

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