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JEE Main 202229 JuneMorning Shift
Exam
JEE Main
Year
2022
Date
29 June
Shift
Morning Shift
Subject
Chemistry
Chapter
p Block Elements (Group 13 & 14)

JEE Main 2022 · 29 June · Morning Shift · Chemistry · p Block Elements (Group 13 & 14)

Match List-I with Match List-II List-I (Metal) List-II...

Match List-I with Match List-II

List-I
(Metal)		 List-II
(Application)
(A) CsCs (I) High temperature thermometer
(B) GaGa (II) Water repellent sprays
(C) BB (III) Photoelectric cells
(D) SiSi (V) Bullet proof vest

Choose the most appropriate answer from the options given below

Options

  1. A(A)−(III),(B)−(I),(C)−(IV),(D)−(II)\left(A\right) - \left(III\right), \left(B\right) - \left(I\right), \left(C\right) - \left(IV\right), \left(D\right) - \left(II\right)
  2. B(A)−(II),(B)−(III),(C)−(IV),(D)−(I)\left(A\right) - \left(II\right), \left(B\right) - \left(III\right), \left(C\right) - \left(IV\right), \left(D\right) - \left(I\right)
  3. C(A)−(IV),(B)−(III),(C)−(II),(D)−(I)\left(A\right) - \left(IV\right), \left(B\right) - \left(III\right), \left(C\right) - \left(II\right), \left(D\right) - \left(I\right)
  4. D(A)−(I),(B)−(IV),(C)−(II),(D)−(II)\left(A\right) - \left(I\right), \left(B\right) - \left(IV\right), \left(C\right) - \left(II\right), \left(D\right) - \left(II\right)

Correct answer

A. (A)−(III),(B)−(I),(C)−(IV),(D)−(II)\left(A\right) - \left(III\right), \left(B\right) - \left(I\right), \left(C\right) - \left(IV\right), \left(D\right) - \left(II\right)

Step-by-step solution

(A)−(III),\left(A\right) - \left(III\right),\left(B\right) - \left(I\right), \left(C\right)−(IV)- \left(IV\right), \left(D\right)−(II)- \left(II\right)

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 CsCs c Photoelectric cell
ii GaGa a High temperature thermometer
iii BB d Bullet-proof vest
iv Si b Water repellent sprays
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