X+YSO4 XSO4 + Y
Y +XSO4
No reaction
Out of the two elements, 'X' and 'Y', which is more reactive and why?​

i just learnt this recently but i need to look through my notes again

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

the answer is a! (2.9 x 10^-18 j) hope i could someone. : )