Tag: basic concepts of chemistry
Questions Related to basic concepts of chemistry
100 ml of hydrogen combine with 50 ml of oxygen to give 100 ml of water vapour. This statement is according to:
Which one of the following pair of compounds illustrates the law of multiple proportions?
An elements forms two oxides containing respectively 53.33 and 36.36 percent of oxygen. These figures illustrate the law of :
Among the following pairs,the one which illustrates the law of multiple proportions is_____.
A hybrid rocket propellant uses:
Which of the following pairs of compound illustrate law of multiple proportions ?
$i$. Percentage of $Mg$ in $MgO$ and $MgCl _{2}$
$iii$. Percentage of $Cr$ in $K _{2} Cr _{2}O _{7}$ and $K _{2}CrO _{4}$
The law of multiple proportions may be illustrated by data given by:
Law of multiple proportions is not applicable for the oxides (s) of __________.
The oxides of a certain (hypothetical) element contain 27.28 %, 42.86% and 52.94% oxygen. What is the ratio of the valances of the element in the 3 oxides?
$CO,CO _2, C _2O _3$ follows :