【題目】如圖是一組檢驗(yàn)氯氣性質(zhì)的裝置。

(1)現(xiàn)關(guān)閉活塞K，若有色布條是干燥的，溶液B為濃硫酸，則有色布條________；若溶液B為水，則有色布條________；若溶液B為飽和的NaHCO3溶液，則有色布條________。

(2)現(xiàn)打開(kāi)K，溶液B為氫氧化鈉溶液，通入的Cl2是濕潤(rùn)的，布條是干燥的，則有色布條________。

【答案】(1)不褪色 褪色 不褪色

(2)褪色

【解析】(1)關(guān)閉K通入Cl2，若B為濃硫酸，則進(jìn)入(Ⅱ)的是干燥的Cl2，有色布條不褪色；若B為水，則進(jìn)入(Ⅱ)的是濕潤(rùn)的Cl2，有色布條褪色；若B是NaHCO3溶液，則Cl2在(Ⅰ)中被消耗，有色布條不褪色。

(2)打開(kāi)K，盡管B是NaOH溶液，濕潤(rùn)的Cl2還是直接進(jìn)入(Ⅱ)，有色布條褪色。

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