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Câu hỏi: Cho sơ đồ phản ứng sau:
(1) ${{X}_{1}}+{{H}_{2}}O\xrightarrow[c\acute{o} m\grave{a}ng ng\breve{a}n]{i\hat{e}n ph\hat{a}n}{{X}_{2}}+{{X}_{3}}\uparrow +{{H}_{2}}\uparrow $
(2) ${{X}_{2}}+{{X}_{4}}\xrightarrow{{}}BaC{{O}_{3}}\downarrow +N{{a}_{2}}C{{O}_{3}}+{{H}_{2}}O$
(3) ${{X}_{2}}+{{X}_{3}}\xrightarrow{{}}{{X}_{1}}+{{X}_{5}}+{{H}_{2}}O$
(4) ${{X}_{4}}+{{X}_{6}}\xrightarrow[{}]{}BaS{{O}_{4}}\downarrow +{{K}_{2}}S{{O}_{4}}+C{{O}_{2}}\uparrow +{{H}_{2}}O$
Các chất X2, X5, X6 lần lượt là:
A. KOH, KClO3, H2SO4
B. NaOH, NaClO, KHSO4
C. NaHCO3, NaClO3, KHSO4
D. NaOH, NaClO, K2SO4
(1) ${{X}_{1}}+{{H}_{2}}O\xrightarrow[c\acute{o} m\grave{a}ng ng\breve{a}n]{i\hat{e}n ph\hat{a}n}{{X}_{2}}+{{X}_{3}}\uparrow +{{H}_{2}}\uparrow $
(2) ${{X}_{2}}+{{X}_{4}}\xrightarrow{{}}BaC{{O}_{3}}\downarrow +N{{a}_{2}}C{{O}_{3}}+{{H}_{2}}O$
(3) ${{X}_{2}}+{{X}_{3}}\xrightarrow{{}}{{X}_{1}}+{{X}_{5}}+{{H}_{2}}O$
(4) ${{X}_{4}}+{{X}_{6}}\xrightarrow[{}]{}BaS{{O}_{4}}\downarrow +{{K}_{2}}S{{O}_{4}}+C{{O}_{2}}\uparrow +{{H}_{2}}O$
Các chất X2, X5, X6 lần lượt là:
A. KOH, KClO3, H2SO4
B. NaOH, NaClO, KHSO4
C. NaHCO3, NaClO3, KHSO4
D. NaOH, NaClO, K2SO4
(1) $2NaCl+2{{H}_{2}}O\xrightarrow[c\acute{o} m\grave{a}ng ng\breve{a}n]{i\hat{e}n ph\hat{a}n}2NaOH+C{{l}_{2}}\uparrow +{{H}_{2}}\uparrow $
(2) $2NaOH+Ba{{\left( HC{{O}_{3}} \right)}_{2}}\xrightarrow{{}}BaC{{O}_{3}}+N{{a}_{2}}C{{O}_{3}}+2{{H}_{2}}O$
(3) $2NaOH+C{{l}_{2}}\xrightarrow{{}}NaCl+NaClO+{{H}_{2}}O$
(4) $Ba{{\left( HC{{O}_{3}} \right)}_{2}}+2KHS{{O}_{4}}\xrightarrow{{}}BaS{{O}_{4}}\downarrow +{{K}_{2}}S{{O}_{4}}+2C{{O}_{2}}+2{{H}_{2}}O\uparrow $
$\Rightarrow {{X}_{2}},{{X}_{5}},{{X}_{6}}$ theo thứ tự lần lượt là: NaOH, NaClO, KHSO4
(2) $2NaOH+Ba{{\left( HC{{O}_{3}} \right)}_{2}}\xrightarrow{{}}BaC{{O}_{3}}+N{{a}_{2}}C{{O}_{3}}+2{{H}_{2}}O$
(3) $2NaOH+C{{l}_{2}}\xrightarrow{{}}NaCl+NaClO+{{H}_{2}}O$
(4) $Ba{{\left( HC{{O}_{3}} \right)}_{2}}+2KHS{{O}_{4}}\xrightarrow{{}}BaS{{O}_{4}}\downarrow +{{K}_{2}}S{{O}_{4}}+2C{{O}_{2}}+2{{H}_{2}}O\uparrow $
$\Rightarrow {{X}_{2}},{{X}_{5}},{{X}_{6}}$ theo thứ tự lần lượt là: NaOH, NaClO, KHSO4
Đáp án D.