Which of the following pairs will not produce | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The production of dihydrogen gas $(H_2)$ by the reaction of metals with acids or other reagents depends on the position of the metal in the electr

Vedclass · Accepted Answer

$Cu + 	ext{dil. } HCl$

Vedclass · Answer

(A) The production of dihydrogen gas $(H_2)$ by the reaction of metals with acids or other reagents depends on the position of the metal in the electrochemical series.Metals that are more reactive than hydrogen (i.e.,have a negative standard reduction potential) can displace hydrogen from acids.$Cu$ (Copper) is below hydrogen in the electrochemical series,meaning it has a positive standard reduction potential.Therefore,$Cu$ cannot displace hydrogen from dilute $HCl$ or other non-oxidizing acids.In contrast,$Fe$ reacts with $H_2SO_4$ to produce $FeSO_4$ and $H_2$,$Mg$ reacts with steam to produce $MgO$ and $H_2$,and $Na$ reacts with alcohol to produce sodium alkoxide and $H_2$.

Which of the following pairs will not produce dihydrogen gas?

Similar Questions

$A$ mercury drop of radius $1 ~cm$ is sprayed into $10^6$ drops of equal size. The energy expended in joules is (Surface tension of mercury is $460 \times 10^{-3} ~N/m$)

What is the concentration of nitrate ions $(NO_3^-)$ if equal volumes of $0.1 \ M \ AgNO_3$ and $0.1 \ M \ NaCl$ are mixed together (in $M$)?

The area (in square units) of the region bounded by the curves $x=y^2$ and $x=3-2y^2$ is

The correct order of the wavelength maxima of the absorption band in the ultraviolet-visible region for the given complexes is

Flame cells are the excretory organs of

Vedclass Test Series

Exam Paper Generator

Online Exam Module