Substance $\mathrm{X}$ reacts with dilute $\mathrm{HCl}$ violently, $\mathrm{Y}$ reacts slowly while $\mathrm{Z}$ does not react at all. $\mathrm{X}, \mathrm{Y}$ and $\mathrm{Z}$ could be respectively

Match column I with column II and select the correct option from the given codes.

Vidisha placed a copper wire in silver nitrate solution as shown in the figure.

Which of the following represents the correct observation?

Read the following statements carefully and identify $\mathrm{X}, \mathrm{Y}$ and $\mathrm{Z}$ respectively.
(i) $\mathrm{X}$ is stored under kerosene.
(ii) $\mathrm{Y}$ catches fire on exposure to air and stored in water.
(iii) $\mathrm{Z}$ reacts with steam.                                                                                                           

Read the given statements and select the correct option.
Statement 1: Silver objects become green and lose their shine with the passage of time.
Statement 2: Silver reacts with carbon dioxide and moisture present in the atmosphere.