Copper metal will react with concentrated trioxonitrate (V) acid to give?

Nzoputa

7 years ago

Nitric acid reacts with copper according to the reaction: 4 HNO3(l) + Cu(s) ==> Cu(NO3)2(s and aq) + 2 NO2(g) + 2 H2O(l) The copper nitrate salt that forms is a deep blue color. The nitrogen dioxide is a orange vapor.

Sarahogilo

8 years ago

I applied for chemical engineering in uniform Abuja, my jamb score is 233, mum is shouting. did'nt i try

jiama

8 years ago

None are correct, in D the 3 is meant to be in the bracet and the 2 outsidw. B would have been correct if the acid was dilute.

Ebube

2 years ago

The answer is B
D is for dilute Hno3
Myschool pls look in to it

Reference new school chemistry

christy1234

9 years ago

yes the answer is B

debbiepraise

10 months ago

The correct answer is:

B. Cu(NO₃)₂ + NO + H₂O

Explanation:
Copper is below hydrogen in the reactivity series, so it does not react with acids like HCl or H₂SO₄ under normal conditions. However, concentrated trioxonitrate(V) acid (HNO₃) is a strong oxidizing agent. It oxidizes copper to copper(II) nitrate [Cu(NO₃)₂], producing nitric oxide (NO) and water.

Balanced reaction:
3Cu+8HNO3(conc)→3Cu(NO3)2+2NO+4H2O
3Cu+8HNO3​(conc)→3Cu(NO3​)2​+2NO+4H2​O

If the acid were dilute, the main gas would be NO₂ instead.

okonkwo2020

3 years ago

D is correct

Bro070

5 years ago

The answer ought to be option'b'

AVAZ

4 years ago

My school please look into this matter 😉😉👍

jamiuTY

3 months ago

and na D

Shaoulin123

1 year ago

They are not explaining what I need to know

elamix2345

1 month ago

correct answer is option D

favourthebest20

6 years ago

thank you

davemajesty

2 years ago

The answer isn't even there

dorisbade1185

3 years ago

i think d answer is B
check new school chemistry page 490