PYQs Homework Notes Mocks Board Daily Homework JEE Mains Chemistry Question type Products of the chromyl chloride test This type of question, asked 2 times: 27 Jan 2024, 30 Jan 2024. All 2 questions below, oldest first.
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Question 1 27 Jan 2024
48 N a C l NaCl N a C l reacts with conc. H 2 S O 4 H_{2}SO_{4} H 2 S O 4 and K 2 C r 2 O 7 K_{2}Cr_{2}O_{7} K 2 C r 2 O 7 to give reddish fumes (B), which react with N a O H NaOH N a O H to give yellow solution (C). (B) and (C) respectively are ; A. C r O 2 C l 2 , N a 2 C r O 4 {CrO}_{2}{Cl}_{2},{Na}_{2}{CrO}_{4} C r O 2 C l 2 , N a 2 C r O 4 B. N a 2 C r O 4 , C r O 2 C l 2 {Na}_{2}{CrO}_{4},{CrO}_{2}{Cl}_{2} N a 2 C r O 4 , C r O 2 C l 2 C. C r O 2 C l 2 , K H S O 4 {CrO}_{2}{Cl}_{2},{KHSO}_{4} C r O 2 C l 2 , K H S O 4 D. C r O 2 C l 2 , N a 2 C r 2 O 7 {CrO}_{2}{Cl}_{2},{Na}_{2}{Cr}_{2}O_{7} C r O 2 C l 2 , N a 2 C r 2 O 7 Tap an option to check your answer.
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Question 2 30 Jan 2024
138 A A A and B B B formed in the following reactions are: C r O 2 C l 2 + 4 N a O H → A + 2 N a C l + 2 H 2 O A + 2 H C l + 2 H 2 O 2 → B + 3 H 2 O \begin{matrix} & CrO_{2}Cl_{2}+ 4NaOH \rightarrow A + 2NaCl + 2H_{2}O \\ & A + 2HCl + 2H_{2}O_{2}\rightarrow B + 3H_{2}O \end{matrix} C r O 2 C l 2 + 4 N a O H → A + 2 N a C l + 2 H 2 O A + 2 H C l + 2 H 2 O 2 → B + 3 H 2 O A. A = N a 2 C r O 4 , B = C r O 5 A = {Na}_{2}{CrO}_{4},\text{ }B = {CrO}_{5} A = N a 2 C r O 4 , B = C r O 5 B. A = N a 2 C r 2 O 4 , B = C r O 4 A = {Na}_{2}{Cr}_{2}O_{4},\text{ }B = {CrO}_{4} A = N a 2 C r 2 O 4 , B = C r O 4 C. A = N a 2 C r 2 O 7 , B = C r O 3 A = {Na}_{2}{Cr}_{2}O_{7},\text{ }B = {CrO}_{3} A = N a 2 C r 2 O 7 , B = C r O 3 D. A = N a 2 C r 2 O 7 , B = C r O A = {Na}_{2}{Cr}_{2}O_{7},\text{ }B = CrO A = N a 2 C r 2 O 7 , B = C r O Tap an option to check your answer.
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