00:01
The concept involved here is the reaction of metal with acids and this leads to form salt and evolution of hydrogen gas.
00:08
Okay.
00:08
So, now we have given first of all copper.
00:14
Okay.
00:14
So, when copper metal reacts with the acid.
00:21
Okay.
00:21
Okay, so in this case, no gas evolved because the reaction does not take place in normal conditions.
00:35
Okay, so that's why the answer that copper and yes, so that is incorrect.
00:43
Okay, that should be no actually.
00:45
Okay, so for first option that is incorrect.
00:53
Okay, let me write it completely...