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JEE Main Test 1...

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  • Question 1
    4 / -1

    A radioactive element gets spilled over the floor of a room. Its half-life period is 30 days. If the initial activity is ten times the permissible value, after how many days will it be safe to enter the room ?

  • Question 2
    4 / -1

    Which of the following statements regarding sulphur is incorrect ?

  • Question 3
    4 / -1

    Formation of coloured ions by transition metals signifies

  • Question 4
    4 / -1

    The correct structure of ethylenediaminetetraacetic acid (EDTA) is

  • Question 5
    4 / -1

    Reaction of alkyl halides with aromatic compounds in presence of anhy. AlCl3 is known as

  • Question 6
    4 / -1

    A man of 2 m height walks at a uniform speed of 6 km/h, away from a lamp post of 6 m height. The rate at which the length of his shadow increase is

  • Question 7
    4 / -1

    Gabriel's synthesis is used frequently for the preparation of which of the following?

  • Question 8
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  • Question 9
    4 / -1

    Identify the correct product formed during the following reaction

  • Question 10
    4 / -1

    Phenol is heated with a solution of mixture of KBr and KBrO3 .The major product obtained in the above reaction is

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