Practical & Analytical Chemistry · JEE Main previous year questions

2019 5 questions

1. Q702019 · 12 Apr 2019 · Shift 1
   
   1. A.
   2. B.
   3. C.
   4. D.
   Show answer

   Answer: B

2. Q812019 · 12 Apr 2019 · Shift 2

   Which one of the following is likely to give a precipitate with ${\text{AgNO}}_3$ solution ?

   1. A.${\text{CHCl}}_3$
   2. B.$({\text{CH}}_3{)}_3\text{CCl}$
   3. C.${\text{CCl}}_4$
   4. D.${\text{CH}}_2=\text{CH}-\text{Cl}$
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   Answer: B

3. Q662019 · 9 Apr 2019 · Shift 1

   Among the following, the molecule expected to be stabilized by anion formation is : ${\mathrm{C}}_2,{\mathrm{O}}_2,\mathrm{NO},{\mathrm{F}}_2$

   1. A.${\mathrm{C}}_2$
   2. B.NO
   3. C.${\mathrm{O}}_2$
   4. D.${\mathrm{F}}_2$
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   Answer: A

4. Q732019 · 8 Apr 2019 · Shift 2

   The calculated spin-only magnetic moments (BM) of the anionic and cationic species of $[\mathrm{Fe}({\mathrm{H}}_2\mathrm{O}{)}_6{]}_2[\mathrm{Fe}(\mathrm{CN}{)}_6]$, respectively, are :

   1. A.2.84 and 5.92
   2. B.4.9 and 0
   3. C.0 and 4.9
   4. D.0 and 5.92
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   Answer: C

5. Q802019 · 11 Jan 2019 · Shift 2
   
   1. A.
   2. B.
   3. C.
   4. D.
   Show answer

   Answer: B