Question

Q15-A student was given Mn, Zn, Fe and Cu metais, Identity which of them
(a) will not displace H, from dil. HCI.
(b) will react only with steam to give H,(g).
(c) Will give H, with 5% HNO,
Write the chemical reactions involved,

I want the equations mainly
Please helpp​

Answer 1

Answer:

Zn will displace less reactivate element hence it is a displacement reaction

Explanation:

hope it will help you

Answer 2

Answer:

Brainly.in

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1

Pallupop

13.09.2017

Chemistry

Secondary School

+5 pts

Answered

A student was given Mn, Zn, Fe, and Cu metals. Identify which of thema) Will not displace H2 from dil HCl.b) Will react only with steam to give H2 gas.c) Will give H2 with 5% HNO3

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Answers

Pragnyarajesh Ambitious

(a) Cu (b) Zn and Fe (c) Mn bcoz only Manganese and Magnesium will react with HNO3

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Comments Report

gadakhsanket

gadakhsanket Ace

Hey dear,

● Answer -

a) Cu

b) Fe

c) Zn

● Explanation -

1) Except copper, other metals react with HCl to liberate H2.

Mg + 2HCl --> MgCl2 + H2

Zn + 2HCl --> ZnCl2 + H2

2Fe + 6HCl --> 2FeCl3 + 3H2

2) Iron will react with only steam to give H2 gas.

2Fe + 3H2O --> Fe2O3 + 3H2

3) Zinc will give H2 with 5% HNO3.

Zn + 2HNO3 --> Zn(NO3)2 + H2