Trắc nghiệm: (a) X + 2NaOH → X1 + X2 + H2O (b) X1 + H2SO4 → X3 + Na2SO4,(a) X + 2NaOH → X1 + X2 + H2O (b) X1 + H2SO4 → X3 + Na2SO4,(a) X + 2NaOH → X1 + X2 + H2O                   (b) X1 + H2SO4 → X3 + Na2SO4,(a) X + 2NaOH → X1 + X2 + H2O (b) X1 + H2SO4 → X3 + Na2SO4,(a) X + 2NaOH → X1 + X2 + H2O (b) X1 + H2SO4 → X3 + Na2SO4,(a) X + 2NaOH ® X1 + X2 + H2O (b) X1 + H2SO4 ® X3 + Na2SO4,(a) X + 2NaOH ® X1 + X2 + H2O (b) X1 + H2SO4 ® X3 + Na2SO4,(a) X + 2NaOH ® X1 + X2 + H2O (b) X1 + H2SO4® X3 + Na2SO4

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(a) X + 2NaOH → X1 + X2 + H2O (b) X1 + H2SO4 → X3 + Na2SO4, (a) X + 2NaOH → X1 + X2 + H2O (b) X1 + H2SO4 → X3 + Na2SO4, (a) X + 2NaOH → X1 + X2 + H2O                   (b) X1 + H2SO4 → X3 + Na2SO4, (a) X + 2NaOH → X1 + X2 + H2O (b) X1 + H2SO4 → X3 + Na2SO4, (a) X + 2NaOH → X1 + X2 + H2O (b) X1 + H2SO4 → X3 + Na2SO4, (a) X + 2NaOH ® X1 + X2 + H2O (b) X1 + H2SO4 ® X3 + Na2SO4, (a) X + 2NaOH ® X1 + X2 + H2O (b) X1 + H2SO4 ® X3 + Na2SO4, (a) X + 2NaOH ® X1 + X2 + H2O (b) X1 + H2SO4® X3 + Na2SO4

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