Practical & Analytical Chemistry · JEE Main previous year questions

2018 2 questions

1. Q872018 · 15 Apr 2018 · Shift 1

   A white sodium salt dissolves readily in water to give a solution which is neutral to litmus. When silver nitrate solution is added to the aformentioned solution, a white precipitate is obtained which does not dissolve in dil. nitric acid. The anion is :

   1. A.${\text{CO}}_3^{2-}$
   2. B.${\text{SO}}_4^{2-}$
   3. C.${\text{Cl}}^{-}$
   4. D.${\text{S}}^{2-}$
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   Answer: C

2. Q872018 · 8 Apr 2018 · Shift 1

   Which type of ‘defect’ has the presence of cations in the interstitial sites?

   1. A.Metal deficiency defect
   2. B.Schottky defect
   3. C.Vacancy defect
   4. D.Frenkel defect
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   Answer: D