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Give the correct order of initials T or F for following statements. Use T if statement is true and F if it is false
(I) Number of $S - S$ bonds in $H_{2} S_{n} O_{6}$ are $(n + 1)$
(II) When $F_{2}$ reacts with water gives $HF, O_{2}$ and $O_{3}$
(III) ${LiNO}_{3}$ and ${BaCl}_{2}$ compounds are used in fire works
(iv) Be and Mg hydrides are ionic and polymeric

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$FTTF$

$TTFF$

$FTTT$

$TFTT$

answer is A.

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Detailed Solution

(I) $\Rightarrow$ No. of $(S - S)$ bonds in $H_{2} S_{n} O_{6}$ are $(n - 1)$ False

$(II) \Rightarrow$ true

$(III) \Rightarrow$ true

${LiNO}_{3}$ produces crimson red while ${BaCl}_{2}$ produces green colour is fire works

(IV) $\Rightarrow$ Hydrides of Be and Mg are covalent and polymeric

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