My Report

Chemistry – Class 12 Practice Test 2


Correct Answer: 2 points | Wrong: -1 point
Grades: A* (100% score) | A (80%-99%) | B (60%-80%) | C (40%-60%) | D (0%-40%)
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1. What is the maximum theoretical energy efficiency of a fuel cell?

2. How many times will the rate of the elementary reaction 3X + Y → X2Y change if the concentration of the substance X is doubled and that of Y is halved?

3. Which of the following solutions has theleast value of conductivity?

4. Which of the following does not cause rusting of iron?

5. What is the preferred electrode when it is not allowed to take part in the chemical reaction?

6. A zinc rod dipped in n molar solution of ZnSO4 has an electrode potential of -0.56 V. The salt is 98 percent dissociated at room temperature. What is the molarity of the solution? (E°(Zn+2/Zn) = -0.5 V)

7. What are colligative properties useful for?

8. Which of the following is not a method of prevention of corrosion?

9. Which of the following aqueous solutions should have the least boiling point?

10. What is the correct Nernst equation for M2+ (aq) + 2e+ → M (s) at 45°C?


 

Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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