Question

Metal P reacts with water and dilute hydrochloric acid. Metal Q does not react with water but reacts with dilute hydrochloric acid. Metal R does not react with water and dilute hydrochloric acid. Which one shows their reactivity in a decreasing order ? *
A. P, Q, R
B. P, R, Q
C. R, Q, P
D. Q, R, P

Answer 1

Answer:

the indefinite continued progress of existence and events in the past, present, and future regarded as a whole.

"travel through space and time"

2.

Answer 2

Answer:

Copper and mercury metal does not react with dilute hydrochloric acid as it comes after hydrogen in the activity series, i.e., they can't replace hydrogen from hydrochloric acid..