SATHEE: D And F Block Elements Question 124

D And F Block Elements Question 124

Question: Which of the following dissolves in hot conc. NaOH solution

[CPMT 2004]

Options:

A) Fe

B) Zn

C) Sn

D) Ag

Show Answer

Answer:

Correct Answer: B

Solution:

Zn dissolve in Conc. NaOH due to the formation of Sodium Zincate. $ Zn+2NaOH\to Na_2ZnO_2+H_2 $

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D And F Block Elements Question 124

Question: Which of the following dissolves in hot conc. NaOH solution

Options:

Answer:

Solution:

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