Which of the following metals releases hydrog | vedclass

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

Question

(A) Very dilute $HNO_3$ (approximately $1\%$ concentration) reacts with $Mg$ and $Mn$ to liberate $H_2$ gas.The reaction is: $Mg(s) + 2HNO_3(aq) 	o M

Vedclass · Accepted Answer

$Mg$

Vedclass · Answer

(A) Very dilute $HNO_3$ (approximately $1\%$ concentration) reacts with $Mg$ and $Mn$ to liberate $H_2$ gas.The reaction is: $Mg(s) + 2HNO_3(aq) 	o Mg(NO_3)_2(aq) + H_2(g) \uparrow$.$Al$ and $Fe$ become passive due to the formation of an oxide layer,and $Cu$ does not react with dilute $HNO_3$ to produce $H_2$ because $HNO_3$ is an oxidizing agent.

Which of the following metals releases hydrogen gas upon reaction with cold and dilute $HNO_3$?

Similar Questions

Which of the following elements does not exhibit variable valency?

Which metal nitrate liberates $NO_{2}$ gas upon heating?

Which of the following can be used to extinguish a fire caused by sodium,potassium,and lithium?

Nitrogen dioxide $(NO_2)$ cannot be obtained from the thermal decomposition of which of the following?

Which of the following elements liberate $H_2$ gas on reaction with $NaOH$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module