NCERT Question 7 - Chapter 3 Class 10 - Metals and Non-Metals

Last updated at August 12, 2026 by

Name two metals which will displace hydrogen from dilute acids, and two metals which will not.

 

Answer:-

In displacement reactions, 

  • Metals which lie above Hydrogen in the reactivity series can displace it from Dilute acids
  • Those that lie below hydrogen in the reactivity series cannot .

Let’s look at the reactivity series:

Reactivity Series - Teachoo.png

Any of the metals in the series placed above Hydrogen can displace it from its acids. 

  • Two such metals are - K (Potassium) and Na (Sodium)

Any of the metals in the series placed below Hydrogen will not be able to displace it from its acids. 

  • Two metals which will not displace hydrogen are - Hg (Mercury) and Ag (Silver) 

 

Remove Ads
Teachoo · Class 10 Explore Class 10
Maninder Singh's photo - Co-founder, Teachoo

Made by

Maninder Singh

CA Maninder Singh is a Chartered Accountant with 16+ years of practical experience and 20+ years of teaching experience. He teaches Science, Economics, Accounting and English at Teachoo using clear explanations and exam-focused methods students can trust.

For faster and distraction-free study, students can choose Teachoo Black.