Match List-I with 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 | (IV) | Bullet proof vest |
Choose the most appropriate answer from the options given below :
Solution
<p>Caesium is used in devising photoelectric cells.</p>
<p>Boron fibres are used in making bullet–proof vest.</p>
<p> Silicones being surrounded by non–polar alkyl
groups are water repelling in nature.</p>
<p> Gallium is less toxic and has a very high boiling
point, so it is used in high temperature
thermometers.</p>
About this question
Subject: Chemistry · Chapter: p-Block Elements · Topic: Group 13: Boron Family
This question is part of PrepWiser's free JEE Main question bank. 300 more solved questions on p-Block Elements are available — start with the harder ones if your accuracy is >70%.