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JEE Main202229 Jun 2022Morning ShiftChemistryp Block Elements (Group 13 & 14)Actual

Match List-I with Match List-II List-I (Metal) List-II (Application) (A) Cs (I) High temperature thermometer (B) Ga (II) Water repellent sprays (C) B (III) Photoelectric cells (D) Si (V) Bullet proof vest Choose the most appropriate answer from the options given below

Options

  1. AA - III , B - I , C - IV , D - II
  2. BA - II , B - III , C - IV , D - I
  3. CA - IV , B - III , C - II , D - I
  4. DA - I , B - IV , C - II , D - II

Correct answer

A. A - III , B - I , C - IV , D - II

Step-by-step solution

A - III , B - I , C - IV , D - II Caesium is used in devising photoelectric cells. Boron fibres are used in making bullet-proof vest. Silicones being surrounded by non-polar alkyl groups are water repelling in nature. Gallium is less toxic and has a very high boiling point, so it is used in high temperature thermometers. Column I (Element) Column II (Uses) i Cs c Photoelectric cell ii Ga a High temperature thermometer iii B d Bullet-proof vest iv Si b Water repellent sprays

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