When a strip of red-brown metal X is placed in a colourless salt solution YNO3 then metal Y is set free and a blue coloured salt solution X(NO3)2 is formed. The liberated metal Y forms a shining white deposit on the strip of metal X.
(a) What do you think metal X is?
(b) Name the salt YNO3.
(c) What could be metal Y?
(d) Name the salt X(NO3)2
(e) What type of reaction takes place between metal X and salt solution YNO3?
(a) Metal X could be Copper, Cu.
(b) The salt YNO3 is Silver nitrate, AgNO3.
(c) Metal Y could be Silver, Ag.
(d) The salt X(NO3)2 is Copper nitrate, Cu(NO3)2.
(e) It is a Displacement reaction as Copper displaces silver in the reaction.
$Cu\ ( s) \ +\ 2AgNO_{3} \ ( aq) \ \ \rightarrow Cu( NO_{3})_{2} \ ( aq) \ +\ 2Ag\ ( s)$
Related Articles
- 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.
- A student dipped the strip of metal X 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. Metals X and Y together form an alloy Z. (a) What could be (a) metal X, and (ii) metal Y? (b) Name the metal salt YSO4. Write its chemical formula (c) What type of chemical reaction takes place when metal X reacts with salt solution YSO4. (d) Name the alloy Z.
- A metal X forms a salt XSO4. The salt XSO4 forms a clear solution in water which reacts with sodium hydroxide solution to form a blue precipitate Y. Metal X is used in making electric wires and alloys like brass.(a) What do you think metal X could be? (b) Write the name, formula, and colour of salt XSO4.(c) What is the blue precipitate Y? (d) Write a chemical equation of the reaction which takes place when salt XSO4reacts with sodium hydroxide solution. Give the state symbols of all the reactants and products which occur in the above equation.
- A metal X forms a water soluble salt XNO3. When an aqueous solution of XNO3 is added to common salt solution, then a white precipitate of compound Y is formed alongwith sodium nitrate solution. Metal X is said to be the best conductor of electricity and it does not evolve hydrogen when put in dilute hydrochloric acid.(a) What is metal X?(b) What is salt XNO3?(c) Name the compound Y.(d) Write the chemical equation of the reaction which takes place on reacting XNO3 solution and common salt solution giving the physical states of all the reactants and products.(e) What type of chemical reaction is illustrated by the above equation?
- The electronic configurations of three elements X, Y, and Z are X - 2,8; Y - 2, 8, 7 and Z - 2, 8, 2. Which of the following is correct?(a) X is a metal(b) Y is a metal(c) Z is a non-metal(d) Y is a non-metal and Z is a metal
- A metal salt MX when exposed to light splits up to form metal M and a gas X2. Metal M is used in making ornaments whereas gas X2 is used in making bleaching powder. The salt MX is itself used in black and white photography.(a) What do you think metal M is?(b) What could be gas X2?(c) Name the metal salt MX.(d) Name any two salt solutions which on mixing together can produce a precipitate of salt MX.(e) What type of chemical reaction takes place when salt MX is exposed to light? Write the equation of the reaction.
- A student was given two metal strips X and Y alongwith colourless silver nitrate solution to perform two separate displacement reactions. When the student placed metal strip X in silver nitrate solution for a considerable time, he observed that the solution turned blue and a coating of silver metal was formed on the strip. And when the student immersed metal strip Y in silver nitrate solution for an equal time, he observed that the solution turned light green with the formation of a coating of silver metal on the strip. The correct conclusion of the student about the identity of metals X and Y is :(1) X is copper and Y is magnesium(2) X is zinc and Y is copper(3) X is iron and Y is copper (4) X is copper and Y is iron
- A metal X which is resistant to corrosion is produced by the electrolysis of its molten oxide whereas another metal Y which is also resistant to corrosion is produced by the reduction of its oxide with carbon. Metal X can be used in powder form in thermite welding whereas metal Y is used in making cathodes of ordinary dry cells.(a) Name the metals X and Y. (b) Which of the two metals is more reactive: X or Y? (c) Name one ore of metal X. Also write its chemical formula. (d) Name one ore of metal Y. Also write its chemical formula. (e) Name one alloy of metal X and one alloy of metal Y.
- Two metals X and Y form the salts XSO4 and Y2SO4, respectively. The solution of salt XSO4 is blue in colour whereas that of Y2SO4 is colourless. When barium chloride solution is added to XSO4 solution, then a white precipitate Z is formed along with a salt which turns the solution green. And when barium chloride solution is added to Y2SO4 solution, then the same white precipitate Z is formed along with colourless common salt solution.(a) What could the metals X and Y be?(b) Write the name and formula of salt XSO4.(c) Write the name and formula of salt Y2SO4.(d) What is the name and formula of white precipitate Z?(e) Write the name and formula of the salt which turns the solution green in the first case.
- Hydrochloric acid reacts with a metal X to form a gas Y which burns with a ‘pop’ sound. Sodium hydroxide solution also reacts with the same metal X (on heating) to form the same gas Y.(a) Name X and Y(b) Write the chemical equation of the reaction of metal X with (i) Hydrochloric acid, and (ii) Sodium hydroxide solution.
- A red-brown metal X forms a salt XSO4. When hydrogen sulphide gas is passed through an aqueous solution of XSO4, then a black precipitate of XS is formed along with sulphuric acid solution.(a) What could the salt XSO4 be?(b) What is the colour of salt XSO4?(c) Name the black precipitate XS.(d) By using the formula of the salt obtained in (a) above, write an equation of the reaction which takes place when hydrogen sulphide gas is passed through its aqueous solution.(e) What type of chemical reaction takes place in this case?
- A silvery-white metal X taken in the form of ribbon, when ignited, burns in air with a dazzling white flame to form a white powder Y. When water is added to powder Y, it dissolves partially to form another substance Z.(a)What could metal X be? (b) What is powder Y? (c) With which substance metal X combines to form powder Y? (d) What is substance Z? Name one domestic use of substance Z? (e)Write a balanced chemical equation of the reaction which takes place when metal X burns in air to form powder Y.
- Metals X and Y can be recovered from the anode mud left behind after the electrolytic refining of copper metal. The coins made of metal X look new even after several years of use but the coins made of metal Y lose their shine gradually and get blackened soon. When metal X is alloyed with a small amount of metal Y, it becomes hard and hence suitable for making ornaments. What are metals X and Y? Also state the colour of metal X.
- A purple coloured non-metal forms a brown solution in alcohol which is applied on wounds as an antiseptic. Name the non-metal.
- Name the metal whose salt is used for making photographic films.
Kickstart Your Career
Get certified by completing the course
Get Started
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies