1. A
   Propan-1-ol
2. B
   Propan-2-ol
3. C
   Propane
4. D
   Propyne

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1. A
   Aniline
2. B
   Pyridine
3. C
   N-methylaniline
4. D
   Triethylamine

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

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1. A
   14 g of $N_2$
2. B
   18 g of $H_2O$
3. C
   16 g of CO
4. D
   28 g of $N_2$

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1. A
   (plot 1: line of positive slope not passing through origin)
2. B
   (plot 2: line of positive slope, higher intercept)
3. C
   (plot 3: straight line of negative slope)
4. D
   (plot 4: line of positive slope through origin)

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1. A
   above 100°C but below 250°C
2. B
   above 250°C
3. C
   at 250°C
4. D
   close to but below 100°C

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

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1. A
   D and E only
2. B
   B and D only
3. C
   A and B only
4. D
   B and E only

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

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1. A
   n-propyl alcohol
2. B
   isopropyl alcohol
3. C
   propanal
4. D
   propionic acid

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1. A
   $PEt_3$ and $AsPh_3$ as ligands can form d$\pi$-d$\pi$ bond with transition metals
2. B
   The N – N single bond is as strong as the P – P single bond
3. C
   Nitrogen has unique ability to form p$\pi$-p$\pi$ multiple bonds with nitrogen, carbon and oxygen
4. D
   Nitrogen cannot form d$\pi$-p$\pi$ bond as other heavier elements of its group

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1. A
   A-IV, B-II, C-III, D-I
2. B
   A-II, B-IV, C-III, D-I
3. C
   A-II, B-III, C-IV, D-I
4. D
   A-III, B-IV, C-II, D-I

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1. A
   A-III, B-IV, C-I, D-II
2. B
   A-IV, B-I, C-III, D-II
3. C
   A-IV, B-III, C-II, D-I
4. D
   A-IV, B-III, C-I, D-II

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1. A
   $-61.75\ kJ\ mol^{-1}$
2. B
   $+5.006\ kJ\ mol^{-1}$
3. C
   $-5.006\ kJ\ mol^{-1}$
4. D
   $+61.75\ kJ\ mol^{-1}$

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1. A
   A-II, B-III, C-IV, D-I
2. B
   A-IV, B-III, C-II, D-I
3. C
   A-I, B-II, C-III, D-IV
4. D
   A-II, B-III, C-I, D-IV

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1. A
   $10^{-4}$
2. B
   $10^{-6}$
3. C
   $10^{-9}$
4. D
   $10^{-5}$

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1. A
   4.07% and 15.02%
2. B
   18.18% and 3.70%
3. C
   15.02% and 4.07%
4. D
   3.70% and 18.18%

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1. A
   F
2. B
   I
3. C
   Cl
4. D
   Br

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1. A
   $R_1 = H; R_2 = H; R_3 = H$
2. B
   $R_1 = CH_3; R_2 = CH_3; R_3 = CH_3$
3. C
   $R_1 = CH_3; R_2 = H; R_3 = H$
4. D
   $R_1 = CH_3; R_2 = CH_3; R_3 = H$

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1. A
   19988.4 J
2. B
   200 J
3. C
   1999 J
4. D
   1.9988 kJ

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1. A
   182310 J
2. B
   18500 J
3. C
   18219 J
4. D
   18030 J

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1. A
   55 g
2. B
   15 g
3. C
   30 g
4. D
   45 g

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1. A
   Only A, B, C
2. B
   Only B, C, D
3. C
   Only A, C, D
4. D
   Only A, B, D

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1. A
   –I inductive effect
2. B
   electromeric effect
3. C
   hyperconjugation
4. D
   mesomeric effect

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1. A
   Natural Reserves
2. B
   Sacred Groves
3. C
   Biodiversity Hotspots
4. D
   Biogeographical Regions

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