Number of lone pairs (and bond pairs) on the central atom of a molecule

1. A.
   $\text{SO}_2$
2. B.
   $\text{NH}_3$
3. C.
   $\text{H}_2\text{O}$
4. D.
   $\text{SF}_4$

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

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1. A.
   NH$_3$
2. B.
   H$_2$O
3. C.
   SO$_2$
4. D.
   BF$_3$

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1. A.
   2
2. B.
   3
3. C.
   1
4. D.
   0

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1. A.
   $SO_2$
2. B.
   $SF_6$
3. C.
   $NH_3$
4. D.
   $SF_4$

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1. A.
   ${NH}_{3}$
2. B.
   ${SF}_{4}$
3. C.
   $\ {ICl}_{3}$
4. D.
   ${PCl}_{3}$

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1. A.
   ${SCl}_{2}$
2. B.
   $\ {PCl}_{3}$
3. C.
   $\ {ClF}_{3}$
4. D.
   $\ {XeF}_{4}$

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1. A.
   ${BrF}_{5}$ and ${XeF}_{6}$
2. B.
   $ICl$ and $H_{2}\text{ }S$
3. C.
   ${ClF}_{3}$ and ${XeF}_{2}$
4. D.
   ${IF}_{7}$ and ${XeF}_{4}$

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1. A.
   1 _ Lone pair and 2 _ Bond pair of electrons
2. B.
   2 _ Lone pair and 2 _ Bond pair of electrons
3. C.
   2 _ Lone pair and 3 _ Bond pair of electrons
4. D.
   1 _ Lone pair and 3 _ Bond pair of electrons

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1. A.
   2 - Bond pair and 1- lone pair of electrons
2. B.
   2 - Bond pair and 2- lone pair of electrons
3. C.
   3 - Bond pair and 1- lone pair of electrons
4. D.
   3 - Bond pair and 2- lone pair of electrons

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