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Some Basic Conc...

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  • Question 1
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    0.48 g of a sample of a compound containing boron and oxygen contains 0.192 g of boron and 0.288 gof oxygen. What will be the percentage composition of the compound?

  • Question 2
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    A compound contains two elements 'x' and 'Y' in the ratio of 50% each. Atomic mass of 'x' is 20 and 'Y' is 40. What can be its simplest formula?

  • Question 3
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    The empirical formula of a compound is CH2O2.What could be its molecular formula?

  • Question 4
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    A gas has molecular formula (CH)n. If vapour density of the gas is 39, what should be the formula of the compound?

  • Question 5
    1 / -0

    Choose the molecular formula of an oxide of iron in which the mass per cent of iron and oxygen are 69.9 and 30.1 respectively and its molecular mass is 160.

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