A) 6 L
B) 600 L
C) 400 L
D) 0.36 L
Correct Answer: D
Solution :
Key Idea: \[{{M}_{1}}{{V}_{1}}={{M}_{2}}{{V}_{2}}\] Given, \[{{M}_{1}}=12\,M,\,{{M}_{2}}=18\,M\] \[{{V}_{1}}=?,\,{{V}_{2}}=240\,mL\] \[\therefore \] \[12\times {{V}_{1}}=18\times 240\] or \[{{V}_{1}}=\frac{18\times 240}{12}\] = 360mL = 0.36 L
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