English

Complete the Following Statements: in the Type of Reaction Called_______________, Two Compounds Exchange Their Positive and Negative Radicals.

Advertisements
Advertisements

Question

Complete the following statement.

In the type of reaction called_______________, two compounds exchange their positive and negative radicals.

Fill in the Blanks
Advertisements

Solution

In the type of reaction called Double decomposition , two compounds exchange their positive and negative radicals.

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Chemical Changes and Reactions - Exercise 2 (B) [Page 29]

APPEARS IN

Selina Concise Chemistry [English] Class 9 ICSE
Chapter 2 Chemical Changes and Reactions
Exercise 2 (B) | Q 1.2 | Page 29

RELATED QUESTIONS

The reaction of iron nail with copper sulphate solution is ______ reaction.


Decomposition brought about by heat is known as thermal decomposition. What is the difference between thermal dissociation and thermal decomposition?


State the type of reactions for the following represent and balance the ones that are not balanced.

 KNO3 + H2SO4 → HNO3 + KHSO4 


State the type of reactions for the following represent and balance the ones that are not balanced.

CaCO3→ CaO+ CO2


Match the following:

a. Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g)

 i. Photochemical decomposition

b. \[\ce{2AgCI(s) ->[Sunlight] 2Ag(s) + CI2(g)}\]

 ii. Thermal decomposition

c. \[\ce{2KCI ->[Electricity] 2K + CI2}\]

iii. Displacement reaction

d.  \[\ce{2HgO(s) ->[\Delta] 2Hg(s) + O(g)}\]

iv. Electrolytic decomposition


Decomposition reactions can occur by heat.  

Give two balanced reactions for each.


Select the correct salt from list II which on thermal decomposition exhibits the change in colour from list I.

List I List II
1. Light green to black A: Copper carbonate
2. White to yellow [heated state] B: Hydrated Copper sulphate
3. Blue to black C: Copper nitrate
4. Orange to green D: Ammonium dichromate
5. Blue to white E: Zinc nitrate

Convert hydrogen to hydrogen chloride by a direct combination reaction.


State how displacement reaction represented.


Give a balanced equation for the following type of reaction:

A thermal decomposition reaction of a salt – which results in the formation of nitrogen gas.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×