हिंदी

Which of the following is a combination and which is a displacement reaction? (a) Cl2 + 2KI -> 2KCl + I2 (b) 2K + Cl2 -> 2KCl

Advertisements
Advertisements

प्रश्न

Which of the following is a combination and which is a displacement reaction?

  1. \[\ce{Cl2 + 2KI -> 2KCl + I2}\]
  2. \[\ce{2K + Cl2 -> 2KCl}\]
अति संक्षिप्त उत्तर
Advertisements

उत्तर

Combination reaction Displacement reaction
\[\ce{2K + Cl2 -> 2KCl}\] \[\ce{Cl2 + 2KI -> 2KCl + I2}\]
shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 1: Chemical Reactions and Equations - Exercise 2 [पृष्ठ ६१]

APPEARS IN

लखमीर सिंग Chemistry Part 2 [English] Class 10
अध्याय 1 Chemical Reactions and Equations
Exercise 2 | Q 19. | पृष्ठ ६१

वीडियो ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्न

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


The reddish brown deposit formed on iron nails kept in a solution of copper sulphate is

  1. Cu2O
  2. Cu
  3. CuO
  4. CuS

Write the balanced chemical equation for the following and identify the type of reaction.

\[\ce{Magnesium(s) + Hydrochloric acid(aq) -> Magnesium chloride(aq) + Hydrogen(g)}\]


What type of chemical reaction is represented by the following equation?

\[\ce{A + BC -> AC + B}\]


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


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?

Fill in the blank.

The chemical change involving iron and hydrochloric acid illustrates a ...............reaction.


Classify the following reaction as combination, decomposition, displacement, precipitation and neutralization. Also balance the equation.

\[\ce{AgNO3_{(aq)} + NaCl_{(aq)}-> AgCl_{(s)} + NaNO3}\]


Explain the terms with examples.

Displacement reaction


i) Observe the following reaction and answer the following questions.
`CuSO_4 (aq) + Fe (s) →  FeSO_4(aq) + Cu (s)`
a) Identify and write the type of chemical reaction.
b) Write the definition of above reaction.


What is observed after about 1 hour of adding the strips of copper and aluminium separately to the ferrous sulphate solution filled in two beakers? Name the reaction if any change in colour is noticed. Also, write a chemical equation for the reaction.


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


Classify the following reaction into – 

  1. Direct combination 
  2. Decomposition
  3. Displacement
  4. Double decomposition

The reaction is – Zinc reacts with copper [II] sulphate to give zinc sulphate and copper.


Give a balanced equation for –

A displacement reaction involving a metal above hydrogen in the activity series with copper [II] sulphate solution


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

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.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×