New ! Chemistry MCQ Practise Tests



  1. Home
  2. 12th Standard
  3. Chemistry
  4. 12th Standard English Medium Chemistry Subject Surface Chemistry Book Back 2 Mark Questions with Solution Part - I

Updated 12th Standard Chemistry Study Materials 2022-2023 Exams

12th Standard English Medium Chemistry Subject Surface Chemistry Book Back 2 Mark Questions with Solution Part - I Question Bank Software Jun-01 , 2021

QB365 provides detailed and simple solution for every Book back Questions in class 12 Chemistry Subject. It will helps to get more idea about question pattern in every book back questions with solution.

12th Standard English Medium Chemistry Subject Surface Chemistry Book Back 2 Mark Questions with Solution Part - I

12th Standard English Medium Chemistry Subject Surface Chemistry Book Back 2 Mark Questions with Solution Part - I

12th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Chemistry

Time : 00:30:00 Hrs
Total Marks : 8

    Part I

    4 x 2 = 8

  1. In a coagulation experiment 10 mL of a colloid (X) is mixed with distilled water and 0.1M solution of an electrolyte AB so that the volume is 20 mL. It was found that all solutions containing more than 6.6 mL of AB coagulate with in 5 minutes. What is the flocculation values of AB for sol (X)?

  2. The mechanism of Fridel crafts reaction is given below
    \({ C }_{ 6 }{ H }_{ 5 }+{ { CH }_{ 3 }Cl\overset { anhydrous\\ \quad { Alcl }_{ 3 } }{ \longrightarrow } }{ C }_{ 6 }{ H }_{ 5 }{ CH }_{ 3 }+HCl\)

  3. Thermal decomposition of KClO3  in presence of MnO2 proceeds as follows.
    Steps in the reaction 2KClO3  → 2KCl + 3O2 can be given as

  4. Formation of water due to the reaction of H2 and O2 in the presence of Cu proceeds as follows. Steps in the reaction H2 + 1/2O2 → H2O can be given as

*****************************************

Reviews & Comments about 12th Standard English Medium Chemistry Subject Surface Chemistry Book Back 2 Mark Questions with Solution Part - I

Write your Comment