मराठी

What happens when dilute hydrochloric acid is added to iron fillings? Choose the correct answer.

Advertisements
Advertisements

प्रश्न

What happens when dilute hydrochloric acid is added to iron fillings? Choose the correct answer.

पर्याय

  • Hydrogen gas and iron chloride are produced.

  • Chlorine gas and iron hydroxide are produced.

  • No reaction takes place.

  • Iron salt and water are produced.

MCQ
Advertisements

उत्तर

Hydrogen gas and iron chloride are produced.

Explanation:

The chlorine from the hydrogen chloride is displaced into the iron fillings, undergoing the following reaction:

\[\ce{Fe_{(s)} + 2HCl(dil{.}) -> FeCl2_{(aq)} + H2_{(g)}}\]

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Chemical Reactions and Equations - EXERCISES [पृष्ठ १५]

APPEARS IN

एनसीईआरटी Science [English] Class 10
पाठ 1 Chemical Reactions and Equations
EXERCISES | Q 3. | पृष्ठ १५

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

CuSO4(aq) + Zn(s) → ZnSO4(aq) + Cu(s) is an example of a decomposition reaction.


In the refining of silver, the recovery of silver from silver nitrate solution involved displacement by copper metal. Write down the reaction involved.


State two characteristics of the chemical reaction which takes place when dilute sulphuric acid is poured over zinc granules.


What type of reaction is represented by the following equation?

\[\ce{2Na + 2H2O -> 2NaOH + H2}\]


What happens when a piece of iron metal is placed in copper sulphate solution? Name the type of reaction involved.


What happens when a zinc strip is dipped into a copper sulphate solution?
Name the type of reaction involved.


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.

  1. What could metal X be?
  2. What could metal Y be?
  3. Name the metal salt YSO4.
  4. What type of chemical reaction takes place when metal X reacts with salt solution YSO4? Write the equation of the chemical reaction involved.
  5. Name the alloy Z.

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 Х.

  1. What do you think metal X is?
  2. Name the salt YNO3.
  3. What could be metal Y?
  4. Name the salt X(NO3)2.
  5. What type of reaction takes place between metal X and salt solution YNO3?

Name the type of reaction which is governed by the position of a metal in the metal activity series ?


The colour of an aqueous solution of zinc sulphate as observed in the laboratory is:

(1) Green 

(2) Yellow 

(3) Blue 

(4) Colourless


Identify the type of reaction taking place in the following case and write the balanced chemical equation for the reaction.
Zinc reacts with silver nitrate to produce zinc nitrate and silver.


Give reasons for the following:
The reaction of iron (III) oxide [Fe2O3] with heated aluminum is used to join cracked machine parts.


  • Complete the given chemical reaction:
    \[\ce{CuSO4_{(aq)} + Fe_{(s)} ->}\] _______ + _______
  • Name the type of the reaction.

Which of the following is a displacement reaction?


\[\ce{Pb + CuCl2 -> PbCl2 + Cu}\]

The above reaction is an example of:


Identify the type of chemical reaction given below:

\[\ce{CuSO4 + Fe -> FeSO4 + Cu}\]


Complete the given chemical equation:

\[\ce{Zn(s) + CuSO4(aq) -> \underline{}\underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{}\underline{}}\]

Name the type of reaction.


State the change in colour observed in following case mentioning the reason:

A piece of zinc is dipped in ferrous sulphate solution.


The colour of the solution observed after 30 minutes of placing zinc metal in copper sulphate solution is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×