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JEE Main Test 1...

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  • Question 1
    4 / -1

    The half-life period of radioactive element is 140 days. After 560 days, 1 g of element will reduce to

  • Question 2
    4 / -1

    Correct order of decreasing thermal stabililty is as

  • Question 3
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    When dil. H2 SO4 is added to aqueous solution of potassium chromate, yellow colour of solution turns to orange colour. It indicates

  • Question 4
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    Which requires catalyst ?

  • Question 5
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    Which of the following system is most stable for a chelate ?

  • Question 6
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    The final product, in the below reaction, is

  • Question 7
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    Reduction of nitrobenzene in the presence of Zn /NH4 Cl gives

  • Question 8
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    Secondary nitro alkanes can be converted into ketones by using Y. Identify Y from the following.

  • Question 9
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    OB and OC are two roads enclosing an angle of 120°. X and Y start from 0 at the same time. X travels along OB with a speed of 4 km/h and Y travels along OC with a speed of 3 km/h. The rate at which the shortest distance between X and Y is increasing after 1 h is

  • Question 10
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