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JEE Main 202118 MarchEvening Shift
Exam
JEE Main
Year
2021
Date
18 March
Shift
Evening Shift
Subject
Chemistry
Chapter
s Block Elements

JEE Main 2021 · 18 March · Evening Shift · Chemistry · s Block Elements

Match list-I with list-II : (a) Be (i) Treatment of cancer (b) Mg...

Match list-I with list-II :

(a) BeBe (i) Treatment of cancer
(b) MgMg (ii) Extraction of metals
(c) CaCa (iii) Incendiary bombs and signals
(d) RaRa (iv) Windows of X-ray tubes
(v) Bearings for motor engines.

Choose the most appropriate answer, the option given below :

Options

  1. Aa−iv,b−iii,c−i,d−iia - iv, b - iii, c - i, d - ii
  2. Ba−iv,b−iii,c−ii,d−ia - iv, b - iii, c - ii, d - i
  3. Ca−iii,b−iv,c−v,d−iia - iii, b - iv, c - v, d - ii
  4. Da−iii,b−iv,c−ii,d−va - iii, b - iv, c - ii, d - v

Correct answer

B. a−iv,b−iii,c−ii,d−ia - iv, b - iii, c - ii, d - i

Step-by-step solution

(a) Be→Be \to it is used in the Windows of X -ray
tubes
(b) Mg→Mg \to it is used in the Incendiary bombs
and signals
(c) Ca→Ca \to it is used in the Extraction of metals
(d) Ra→Ra \to it is used in the Treatment of cancer
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