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Na3 AlF6 is the formula for .......

`Na_3 AlF_6` is the formula for ....

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From the electronic configurations Li (2, 1), Na (2, 8, 1) and K (2, 8, 8, 1), answer the following questions: Formula of sodium sulphate is Na_2SO_4 . Write the formula of potassium sulphate.

A : If a tetrad axis is passed through the unit cell of NaCl and all ions removed which are touching to tetrad axis then the formula of NaCl becomes Na_(3)Cl_(4) . R : Only one Na^(+) is removed not the Cl^(-) .

Knowledge Check

  • Which one is the formula of baking soda? Na_(2)CO_(3) NaOH KHCO_(3) NaHCO_(3)

    A
    `Na_(2)CO_(3)`
    B
    NaOH
    C
    `KHCO_(3)`
    D
    `NaHCO_(3)`

  • Assertion : In the metallury of aluminium , purified Al_(2)O_(3) is mixed with Na_(3)AlF_(6) or CaF_(2) . Reason : Na_(3)AlF_(6) or CaF_(2) lowers the melting point of mixture and increases its conductivity.

    A
    1. If both assertion and reason are true and reason is the correct explanation of assertion .
    B
    2. if both assertion and reason are true but reason is not the correct explanation of assertion
    C
    3. If assertion is true but reason is false
    D
    4. If both assertion and reason are false.

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    What is the formula of the next homologue of propene (C_3H_6) ?

    Write the formula for n = 6 for 1. alkane 2. alkene 3. alkyne

    A sodium salt of ternary acid of molybdenum ( atomic mass =96) has the formula Na_(2)MoO_(n) . When an acidified solution of Na_(2)MoO_(n) is electrolyzed, O_(2) gas is liberated corresponding to a volume of 0.112L at STP and 0.32g of Mo is deposited. Find the formula of salt. .

    Write the empirical formula for each of the following: Na_(2)CO_(3)

    Chemical formula of sodium carbonate is Na_2CO_3 then what would be the formula of calcium hydrogen carbonate.

    Calculate the percentage of : Sodium in sodium aluminium fluoride [Na_(3)AlF_(6)] , to the nearest whole number. (Atomic Mass : Na = 23, Al = 27, F = 19]

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