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Some Basic Conc...

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  • Question 1
    4 / -1

    The number of molecules in 100 mL of each of O2 ,NH3 and CO2 at STP are

  • Question 2
    4 / -1

    Which of the following represents the formula of a compound which contains 26% nitrogen and 74% oxygen ?

  • Question 3
    4 / -1

    A balanced chemical equation is in accordance with

  • Question 4
    4 / -1

    The atomic weights of two elements X and Y are 20 and 40 respectively. If ‘a’ gm of X contains ‘b’ atoms, how many atoms are present in ‘2a’ gm of Y ?

  • Question 5
    4 / -1

    Calculate the molarity of a solution obtained by mixing 50mL of 0.5M H2SO4 and 75 mL of 0.25M H2SO4.

  • Question 6
    4 / -1

    Which of the following has the highest normality ?

  • Question 7
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  • Question 8
    4 / -1

    The total number of atoms of all elements present in mole of ammonium dichromate is

  • Question 9
    4 / -1

    0.32 gm of a metal on treatment with an acid gave 112 mL of hydrogen at STP. Calculate the equivalent weight of the metal

  • Question 10
    4 / -1

    100 mL of PH3 on heating forms P and H2 . The volume change in the reaction is

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