Question

PLEASE HELP ME!

-The compound dissolves in water to form a solution with pH > 7.
- The compound has a low boiling point.

The elements P, Q, R and S have proton number of 1, 7, 11 and 17.
Which of the following pair of elements will react to form a compound with the characteristics stated in the table above?
A. P and Q
B. R and S
C. Q and R
D. P and S​

Answer 1

C

Step-by-step explanation:

Q and R forms a nitrate. When dissolved in water it will form a solution with a pH greater than 7 because the solution is alkaline.