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Question

Chemistry Question on Group 17 Elements

AA when added to silica will give BAB A and BB are

A

HF,H2SiF4H F, H_{2} S i F_{4}

B

HF,H2SiF6 HF,H_{2}SiF_{6}

C

HCl,H2SiCl6HCl,H_{2}SiCl_{6}

D

HI,H2SiI6HI,H_{2}SiI_{6}

Answer

HF,H2SiF6 HF,H_{2}SiF_{6}

Explanation

Solution

6HFhydrogen fluoride+Sisilicon→H2SiF6+2H2\underset{\text{hydrogen fluoride}}{6 HF} + \underset{\text{silicon}}{Si} \rightarrow H _{2} SiF _{6}+2 H _{2}