1.

Which of the following reaction take place at a faster rate

Answer»

`2Na_((s))+I_(2(s))rarr2NaI_((s))`
`2Na_((s))+I_(2(g))rarr2NaI_((s))`
`PbNO_3(s)+KI_((s))rarrPbI_((s))+KNO_3`
`underset("MARBLE")(CaCO_3)+OVERSET(dil)(HCl)rarrCaCl_2+H_2O+CO_2uarr`

Answer :B


Discussion

No Comment Found