When acid is added to salt X, a gas is produced which turns limewater milky.
When sodium hydroxide is added to salt X, a gas is produced which turns litmus paper blue.
What is X?
1 )
CaCO$_3$
(NH$_4$)$_2$CO$_3$
3 )
NH$_4$NO$_3$
4 )
ZnCO$_3$
تحلیل ویدئویی تست
منتظریم اولین نفر تحلیلش کنه!