12th Chemistry chapter 3: full solution, notes, MCQ, & free PDF | Bihar board

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12th Chemistry chapter 3: cover all important question with new latest pattern. you can download Chemistry chapter 3 notes & full solution as PDF format in English. below we are goin to cover chapter 3 Chemistry class 12 Bihar board
Bihar board Chemistry chapter 3 class 12: specially we focused on Bihar board latest pattern of Chemistry, and on this post covered class 12th Chemistry chapter 3 based on Bihar board. check out below to get full solutions of Chemistry chapter 3 class 12 bihar board.

12th Chemistry chapter 3 Bihar board with NCERT-Details & Highlights

name of content 12th Chemistry chapter 3 full solution
content Chemistry objective type MCQ question with answer
name of subjects  class 12 Chemistry
important for exam Bihar board & other state board
pattern & Level  NCERT & State level question

12th Chemistry chapter 3 all objective solutions – download PDF

1.  A standard hydrogen electrode that a zero potential because 

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    • (a) hydrogen can be most’easily oxidized
    • (b) hydrogen has only one electron
    • (c) the electrode potential is assumed to be zero
    • (d) hydrogen is the lightest element.

Ans (C)

2. Which of the following is the correct order in which metals displace each other from the salt solution of their salts  ?

    • (a) Zn, Al, Mg, Fe, Cu
    • (b) Cu, Fe, Mg, Al, Zn
    • (c) Mg, Al, Zn, Fe, Cu
    • (d) Al, Mg, Fe, Cu, Zn

Ans (D)

3. Fluorine is the best oxidising agent because it has ………..

    • (a) highest electron affinity
    • (b) highest reduction potential
    • (c) highest oxidation potential
    • (d) lowest electron affinity.

Ans (B)

4. The molar conductivity is maximum for the solution of concentration

    • (a) 0.004 M
    • (b) 0.002 M
    • (c) 0.005 M
    • (d) 0.001 M

Ans (D)

5. Specific conductance of 0.1 M NaCl solution is 1.01 x 10-2 ohm-1cm-1. Its molar conductance in ohm-1 cmmol-1

    • (a) 1.01 x 102
    • (b) 1.01 x 103
    • (c) 1.01 x 104
    • (d) 1.01

Ans (A)

6. When water is added to an aqueous solution of an electrolyte, what is the change in specific conductivity of the electrolyte ?

    • (a) Conductivity decreases
    • (b) Conductivity increases
    • (c) Conductivity remain same
    • (d) Conductivity does not depend on number of ions

Ans (A)

7. In galvanic cell, anode is : 

    • (a) Negative electrode
    • (b) Positive electrode
    • (c) Neutral electrode
    • (d) None of these

Ans (A)

8. The cell which involves the conversion of chemical energy into electrical energy is called : 

    • (a) Electrolytic cell
    • (b) Galvanic cell
    • (c) Conductivity cell
    • (d) All of these

Ans (B)

9. When flow of electric current in a conductor is through flow of electron then, the conductor is called:

    • (a) Metallic conductor
    • (b) Electrolytic conductor
    • (c) Bad conductor
    • (d) None of these

Ans (A)

10. If  96500 coulomb electricity is passed through CuSO4Solution, it will liberate. 

    • (a) 63.5 gm of Cu
    • (b) 31.76 gm of Cu
    • (c) 96500 gm of Cu
    • (d) 100 gm of Cu

Ans (B)

Bihar Board most important mcq solution 12th chemistry chapter 3

11. Fused NaCl on electrolysis gives …… on cathode. 

    • (a) Chlorine
    • (b) Sodium
    • (c) Sodium amalgam
    • (d) Hydrogen

Ans (B)

12. n an aqueous solution hydrogen (H) will not reduce : 

    • (a) Fe3+
    • (b) Zn2+
    • (c) Cu2+
    • (d) Ag

Ans (A)

13. Which of the following is a secondary cell ? 

    • (a) Leclanche cell
    • (b) Lead storage battery
    • (c) Concentration cell
    • (d) All of these

Ans (B)

14. Faraday’s second law of electrolysis is related to : 

    • (a) Atomic number of cation
    • (b) Speed of cation
    • (c) Speed of anion
    • (d) Equivalent weight of electrolyte

Ans (D)

15. The molar conductivity is maximum for the solution of concentration :

    • (a) 0.004 M
    • (b) 0.002 M
    • (c) 0.005 M
    • (d) 0.001 M

Ans (D)

16. Which has the maximum standard oxidation potential ? 

      • (a) Zn
      • (b) Cu
      • (c) Ag
      • (d) Mg

Ans (D)

17. The quantity of charge required to obtain one mole of aluminium from Al2O3is …….

    • (a) 1 F
    • (b) 6 F
    • (c) 3 F
    • (d) 2 F

Ans (C)

18. One Faraday electricity equal to how much Coulombs ?

    • (a) 96550
    • (b) 96500
    • (c) 96000
    • (d) 95500

Ans (B)

19. When one faraday of electric current is passed, the mass deposited, is equal to : 

    • (a) One gram equivalent
    • (b) One gram mole
    • (c) electrochemical equivalent
    • (d) Half gram equivalent

Ans (C)

20. The electrode through which electrons enter into electrolytic solution is: 

    • (a) Cathode
    • (b) Anode
    • (c) May be anode cathode
    • (d) None

Ans (C)

21. A dilute aqueous solution of sodium fluoride is electrolysed, the products at the anode and cathode are : 

    • (a) F, Na
    • (b) F2, H2
    • (c) O2 , Na
    • (d) O2, H2

Ans (B)

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Bihar board 12th science stream subjects wise solution

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SL.N.  Subject name with solutions
01 Physics
02 Chemistry
03 Biology
04 Math
05 Hindi
06 English

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