Question

Fill in the blanks by choosing the appropriate word/words from those given in the brackets:
(increases, decreases, positive, efficient, 68, non-efficient, no $\alpha$-hydrogen, $\alpha$-hydrogen, negative, Rosenmund's, greater, Cannizzaro, 74, common-ion effect, lesser, buffer action, diamagnetic, paramagnetic)
The more .................... is standard reduction potential of a metal, the ............... is its ability to displace hydrogen from acids.

Answer 1

The more negative is standard reduction potential of a metal, the greater is its ability to displace hydrogen from acids.
The more negative is standard reduction potential of a metal, stronger it is as reducing agent. Hence, greater is the tendency of the metal to donate electron. The electron will combine with proton to form hydrogen.