General Organic Chemistry & Isomerism · JEE Main previous year questions

2018 3 questions

1. Q672018 · 16 Apr 2018 · Shift 1

   Which of the following complexes will show geometrical isomerism ?

   1. A.aquachlorobis (ethylenediamine) cobalt (II) chloride
   2. B.pentaaquachlorochromium (III) chloride
   3. C.potassium amminetrichloroplatinate (II)
   4. D.potassium tris(oxalato) chromate (III)
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   Answer: A

2. Q752018 · 15 Apr 2018 · Shift 1
   
   1. A.4-methyl-3-ethylhex-4-ene
   2. B.3-ethyl-4-methylhex-4-ene
   3. C.4-ethyl-3-methylhex-2-ene
   4. D.4, 4- diethyl-3-methylbut-2-ene
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   Answer: C

3. Q892018 · 8 Apr 2018 · Shift 1

   When metal ‘M’ is treated with NaOH, a white gelatinous precipitate ‘X’ is obtained, which is soluble in excess of NaOH. Compound ‘X’ when heated strongly gives an oxide which is used in chromatography as an adsorbent. The metal ‘M’ is

   1. A.Fe
   2. B.Zn
   3. C.Ca
   4. D.Al
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   Answer: D