Mustard gas, tear gas and phosgene: formula and composition

1. A.
   Mustard gas
2. B.
   Phosgene
3. C.
   Tear gas
4. D.
   Phosphine

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1. A.
   n
2. B.
   3n
3. C.
   2n
4. D.
   4n

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1. A.
   $3n$ Cl and $n$ N
2. B.
   $2n$ Cl and $2n$ N
3. C.
   $n$ Cl and $n$ N
4. D.
   $n$ Cl and $2n$ N

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1. A.
   $\text{SOCl}_2$
2. B.
   $\text{COCl}_2$
3. C.
   $(\text{ClCH}_2)_2\text{S}$
4. D.
   $\text{CCl}_3\text{NO}_2$

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1. A.
   ${COCl}_{2}$
2. B.
   $Cl - {CH}_{2} - {CH}_{2} - S - {CH}_{2} - {CH}_{2} - Cl$
3. C.
   $\ {CCl}_{3}{NO}_{2}$
4. D.
   ${CCl}_{2}{\text{ }F}_{2}$

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1. A.
   Cl
2. B.
   N
3. C.
   S
4. D.
   C

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