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-p-Block elements - I — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry-p-Block elements - I1 Mark
MCQ
Which one of the following statements is not correct
  • A
    Zinc dissolves in sodium hydroxide solution
  • B
    Carbon monoxide reduces iron $(III)$ oxide to iron
  • C
    Mercury $(II)$ iodide dissolves in excess of potassium iodide solution
  • ✓
    Tin $(IV)$ chloride is made by dissolving tin solution in concentrated hydrochloric acid
✓

Answer

Correct option: D.
Tin $(IV)$ chloride is made by dissolving tin solution in concentrated hydrochloric acid
d
Zinc dissolves in sodium hydroxide solution due to formation of

$Zn + NaOH \rightarrow Na _2 ZnO _2 \text {. }$

Mercury $(II)$iodide dissolves in excess of potassium iodide solution due to formation of

$HgI _2+2 KI \rightarrow K _2 HgI _4$

Tin $(IV)$ chloride is made by

$Sn +2 Cl _2 \rightarrow SnCl _4$

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