Question

A metal powder was added to dilute HCl and dilute NaOH solution taken in separate test tubes. On making the contents react in both the test tubes, hydrogen gas was formed in both the cases. The metal used is
Cu
Zn
Co
Li​

Answer 1

Answer:

(B) Zn

Explanation:

Zn which is Zinc reacts with HCL(Strong Acid) to form Zinc chloride(ZnCl₂) and Hydrogen Gas.

Now, Zinc also reacts with NaOH(Strong base) to form Sodium Zincate (Na₂ZnO2) and Hydrogen Gas.  

(I hope it will be helpful.)

Answer 2

Answer:

zn is the correct answer

Explanation:

zn +naoh