Acids (h+) reacts with metal hydroxides (oh¯) to from
a. salt and hydrogen gas
b. salt and water
c. salt and hydrogen oxides
d. salt and alkali.

Option B, salt and water

Explanation:

Reaction between acid(H+) and base (Metal hydroxide) is called as neutralization reaction and forms salt, water as products.

Example , HCl reacts with NaOH forms NaCl and H2O.

Option A is between metal and acids gives salt and Hydrogen gas.

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.