Under the same conditions of temperature and pressure,equal volumes of different gases contain an equal number of......

Who proposed the Law of Multiple Proportions?

Two elements $X$ and $Y$ have atomic weights of $14$ and $16$. They form a series of compounds $A, B, C, D$ and $E$ in which for the same amount of element $X$,the amounts of $Y$ are present in the ratio $1 : 2 : 3 : 4 : 5$. If the compound $A$ has $28$ parts by weight of $X$ and $16$ parts by weight of $Y$,then the compound $C$ will have $28$ parts by weight of $X$ and:

State and explain Gay-Lussac's Law of Gaseous Volumes.

Which of the following pairs of compounds does not demonstrate the law of multiple proportions?

Among the following pairs of compounds,the one that illustrates the law of multiple proportions is