Day 519: JEE Mains Chemistry

1. A.
   $N_{2}O_{3},{NO}_{2}$
2. B.
   ${NO}_{2},{\text{ }N}_{2}O_{4}$
3. C.
   ${NO}_{2},{\text{ }N}_{2}O_{5}$
4. D.
   $NO,{NO}_{2}$

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1. A.
   Both Statement I and Statement II are correct.
2. B.
   Both Statement I and Statement II are incorrect
3. C.
   Statement I is correct but Statement II is incorrect.
4. D.
   Statement I is incorrect but Statement II is correct.

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1. A.
   Both (A) and (R) are correct and (R) is the correct explanation of (A)
2. B.
   (A) is not correct but $(R)$ is correct
3. C.
   Both (A) and (R) are correct but (R) is not the correct explanation of (A)
4. D.
   (A) is correct but $(R)$ is not correct

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1. A.
   A is false but R is true
2. B.
   Both $A$ and $R$ are true, but $R$ is not the correct explanation of $A$
3. C.
   A is true but R is false
4. D.
   Both A and R are true, and R is the correct explanation of $A$

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