Which of these has no vasodilator effect.. Methyl dopa

publisher :NIL NAM -May 23, 2017

Which of these has no vasodilator effect?
a- Methyl dopa.***
b- Hydralazine.
c- Enalapril.
d- Prazocin.

Five ml of a colored solution has an absorbance of 0.500. The absorbance of 10ml of the same colored solution will be.. 0.500