MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Decomposition Reaction

A reddish bro...

Question

A reddish brown metal X is added to solution of metal nitrate Y. the metal present in Y is usedfor making jewellery and turns black in air. very thin foils of metal are used to decorate sweets. The compound Z formed on chemical reaction is blue in colour and metal present in Y is formed. Identify the X ,Y and Z and write chemical reaction involved.

Open in App

Solution

A reddish brown metal is copper. Metal nitrate solution is silver nitrate.
X = Copper metal
Y = Silver nitrate (AgNO₃)
Silver is used for making jewellery and also used to decorate sweets.
Z is copper nitrate
$A g N O_{3} + C u \to C u C O_{3} + A g$

Suggest Corrections

thumbs-up

0

Similar questions

Q. Metal X is found in earth's crust. This metal forms a reddish brown substance when exposed to moist air. When a blue colored solution Y is stored in a container made of X, the solution turns green and a reddish brown metal Z gets deposited on the container.
X, Y and Z are respectively:

Q. A strip of metal X is dipped in a blue coloured salt solution YSO₄. After some time, a layer of metal Y from the salt solution is formed on the surface of metal strip X. Metal X is used in galvanisation whereas metal Y is used in making electric wires. Metal X and metal Y together form an alloy Z.
(a) What could metal X be?
(b) What could metal Y be?
(c) Name the metal salt YSO₄.
(d) What type of chemical reaction takes place when metal X reacts with salt solution YSO₄? Write the equation of the chemical reaction involved.
(e) Name the alloy Z.

Q. A metal nitrate

A

on heating gives yellowish brown coloured metal oxide along with brown gas

B

and a colourless gas

C

. An aqueous solution of

A

on reaction with potassium iodide forms a yellow precipitate of compound

D

A, B, C

D

. Also, identify the types of reactions taking place. Metal present in

A

is used in an alloy which is used for soldering purposes.

Q. An aqueous blue coloured solution of transition metal sulphate reacts with H2S in acidic medium to give a black ppt. A which is insoluble in warm aqueous solution of KOH. The blue solution on treatment with KI in weakly acidic medium turns yellow and produces a white ppt B . Identify the transition metal ion.write the chemical reaction involved in the formation of A and B.

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Chemical Reactions and Equations II

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Decomposition Reaction

Standard IX Chemistry

Join BYJU'S Learning Program

CrossIcon