A) \[Sn{{(OH)}_{2}},N{{a}_{2}}Sn{{O}_{3}}\]
B) \[Sn{{(OH)}_{2}},N{{a}_{2}}Sn{{O}_{2}}\]
C) \[Sn{{(OH)}_{2}},N{{a}_{2}}[Sn{{(OH)}_{6}}]\]
D) \[Sn{{(OH)}_{2}},\]no effect
Correct Answer: B
Solution :
\[SnC{{l}_{2}}+2NaOH\xrightarrow{{}}\underset{\text{White}\,\text{ppt}}{\mathop{Sn{{(OH)}_{2}}}}\,\downarrow +2NaCl\] \[Sn{{(OH)}_{2}}+2NaOH\xrightarrow{{}}\underset{\text{sodium}\,\text{stannite}}{\mathop{N{{a}_{2}}Sn{{O}_{2}}}}\,+2{{H}_{2}}O\]
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