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If two elements can combine to form more...

If two elements can combine to form more than one compound, the masses of one element that combine with a fixed mass of the other element, are in whole number ratio.
(a) Is this statement true?
(b) It yes, according to which law?
(c) Give one example related to this law.

Text Solution

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(a) Yes, the given statement is true.
(b) This is true according to Low of Multiple Proportions.
(c) Carbon and oxygen combine to form CO and `CO_(2)`
`{:(" "2C" ",+," "O_(2)" ",rarr," "2CO),(""2xx12g,," 32 g",,"Carbon monoxide"),(" "C" ",+," "O_(2)" ",rarr," "CO_(2)),(" 12 g",," 32 g",,"Carbon dioxide"):}`
Masses of `O_(2)` which combine with fixed mass of C in the two cases are 16 g and 32 g which are in the ratio `1:2` which is a simple whole number ratio.
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This law was proposed by Dalton in 1803 . According to this law , if two elements combune to form more than one compounds ,the masses of one element that combine with a fixed mass of the other element, are in the ratio of small whole number. For exemple, hydrogen combines with oxygen to form two compounds ,namely, water and hydrogen peroxide. Here, the masses of oxygen (i.e, 16g and 32g) which combine with a fixed mass of hydrogen (2g) bear a simple raio, i.e, 16 :32 or 1 :2 . An element forms two oxides .In one oxide ,one gram of the oxide containd 0.5g of the element. In another oxide, 4g of the oxide contains 0.8g of the element . Show that these data confirm the law of multiple proportion.

This law was proposed by Dalton in 1803 . According to this law , if two elements combune to form more than one compounds ,the masses of one element that combine with a fixed mass of the other element, are in the ratio of small whole number. For exemple, hydrogen combines with oxygen to form two compounds ,namely, water and hydrogen peroxide. Here, the masses of oxygen (i.e, 16g and 32g) which combine with a fixed mass of hydrogen (2g) bear a simple raio, i.e, 16 :32 or 1 :2 . N_(2) and O_(2) combine to form a number of compounds such as NO,N_(2)O,N_(2)O_(3),N_(2)O_(5) . Show that these follow the law of multiple proportion.

Knowledge Check

  • Which law states that if two elements can combine to form more than one compound, the masses of one element that combine with a fixed mass of other element, are in the ratio of small whole numbers?

    A
    Avogadro's law
    B
    Law of definite composition
    C
    Law of multiple proportions
    D
    Gay Lussac's law of gaseous volumes

  • Which law states that if two elements can coombine to form more than one compound the masses of one element that combine with a fixed mass of other element are in the ratio of small whole numbers?

    A
    Avagadro law
    B
    Law of definite composition
    C
    Law of multiple proportions
    D
    Gay Lussac's law of gaseous volumes

  • Which element reacts with chlorine and forms more than one compounds?

    A
    K
    B
    Zn
    C
    Fe
    D
    Ca

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