JEE Main 2021 · ChemistryMultiple choiceMatch the listEasyRecall

JEE Main 4 August 2021, Shift 1, Chemistry Q50

Question 50 of 90 in this shift, Chemistry question 20 of 30, Section A.

Match List I with List II List I (Metal salt) List II (Colour to the flame) A.

\mathrm{Cu^{2+}}

I. Brick Red B.

\mathrm{Sr^{2+}}

II. Apple Green C.

\mathrm{Ba^{2+}}

III. Green Flame with blue center D.

\mathrm{Ca^{2+}}

IV. Crimson Red. Choose the correct answer from the options given below :

(1)A – I, B – II, C – III, D – IV
(2)A – IV, B – III, C – II, D – I
(3)A – II, B – I, C – IV, D – III
(4)A – III, B – IV, C – II, D – IOfficial answer

Official answer

Option 4

NTA final key.

Chapter: The s-Block Elements
Topic: s-Block Elements
Idea tested: Flame Coloration

Same idea in other shifts

Asked 7× in all

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.