Day 162: JEE Mains Chemistry

1. A.
   ${PF}_{5}$
2. B.
   ${XeF}_{4}$
3. C.
   ${SF}_{4}$
4. D.
   ${XeF}_{2}$

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1. A.
   $r_{Br} < r_{K}$
2. B.
   $r_{Mg} < r_{Al}$
3. C.
   $r_{Rb} < r_{Cs}$
4. D.
   $r_{At} < r_{Cs}$

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1. A.
   $2.28 \times 10^{- 7}\text{ }cm$
2. B.
   $2.28 \times 10^{- 6}\text{ }cm$
3. C.
   $1.14 \times 10^{- 7}\text{ }cm$
4. D.
   $1.14 \times 10^{- 6}\text{ }cm$

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1. A.
   Ethane has infinite number of conformations
2. B.
   The dihedral angle in staggered conformation is $60^{\circ}$
3. C.
   Eclipsed conformation is the most stable conformation.
4. D.
   The conformations of ethane are interconvertible to one-another

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