Rules

1. The test consists of 5 MCQs.

2. You can attempt any question at random but sequential answering is suggested.

3. If you wish, the EXPLANATION can be viewed immediately after answering a question. If not, you can see at the end of the test.

4. After completing the test, click FINISH button to view your PERFORMANCE REPORT.

5. Your option to a particular question will be locked if you have viewed its EXPLANATION.
All the options answered will be locked after hitting the FINISH button. Until then you can change your option(s).

6. Remember this is not a test of speed. However, the time taken to complete the test and number of hints used are displayed in the report.

  • 1. A copper calorimeter weighing 0.l kg contains 0.2 kg of water at 20°C. The mass of the ice that should be added to the water in the calorimeter so that the temperature falls to 10°C is...... (Specific heat of copper 420 J kg–1 K–1 and latent heat of fusion of ice is 336000 J kg–1 )

    • a) 2.33 kg
    • b) 0.0233 kg
    • c) 0.233 kg
    • d) 3.233 kg
    Check Answer

  • 2. X = 4x3 + 2x2 + 8x + 7. If X + A = X, then A is

    • a) 1
    • b) – 1
    • c) 0
    • d) 2
    Check Answer

  • 3. The rate constant of a reaction increased by 3 times for every 10°C rise of temperature uniformly in the range 20 to 80°C. If the rate constant at 30°C is K, what is its value at 60°C

    • a) 9K
    • b) 27 K
    • c) 6K
    • d) 81 K
    Check Answer

  • 4. When pyridine is added to the ether layer containing blue peroxide of chromium, the compound obtained is

    • a) PyCrO3
    • b) PyCrO5
    • c) PyCrO4
    • d) PyCrO2
    Check Answer

  • 5. The correct order of rate of SN2 reactivity of H2O, OCH3, OH, CH3COO is

    • a)
      O
      H >
      O
      CH3 > CH3CO
      O
      > H2O
    • b) H2O >
      O
      H >
      O
      CH3 > CH3CO
      O
    • c)
      O
      CH3 >
      O
      H > CH3CO
      O
      > H2O
    • d) H2O > CH3CO
      O
      >
      O
      H >
      O
      CH3
    Check Answer