A) 3 : 1
B) 1 : 3
C) 1 : 6
D) 6 : 1
Correct Answer: A
Solution :
Given that\[\,{{m}_{A}}{{C}_{A}}={{m}_{B}}{{C}_{B}}\]or \[{{V}_{A}}{{\rho }_{A}}{{C}_{A}}={{V}_{B}}{{\rho }_{B}}{{C}_{B}}\] or \[10{{\rho }_{A}}\times 0.2\,=20{{\rho }_{B}}\times 0.3\] or \[\frac{{{\rho }_{A}}}{{{\rho }_{B}}}=\frac{3}{1}\] Hence, the correction option is [a].
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