JEE Main 2022 · ChemistryNumerical answerNumerical valueMediumCalculation

JEE Main 28 June 2022, Shift 2, Chemistry Q87

Question 87 of 90 in this shift, Chemistry question 27 of 30, Section B.

(a)

\mathrm{CoCl_3.4\ NH_3}

, (b)

\mathrm{CoCl_3\cdot5NH_3}

, (c)

\mathrm{CoCl_3\cdot6NH_3}

and (d)

\mathrm{CoCl(NO_3)_2\cdot5NH_3}

. Number of complex(es) which will exist in cis-trans form is/are __________.

Official answer

NTA final key.

Chapter: Coordination Compounds
Topic: Coordination Isomerism
Idea tested: Total Isomer Calculation

Same idea in other shifts

Asked 3× in all

13 Apr 2023, Shift 2 · Q72The total number of stereoisomers for the complex $[\mathrm{Cr}(ox)_2\mathrm{ClBr}]^{3-}$ (where $ox$ = oxalate) is:MediumSingle correct
26 Feb 2021, Shift 2 · Q60The number of stereoisomers possible for $[\mathrm{Co(ox)_2(Br)(NH_3)}]^{2-}$ is __________. [ox = oxalate]HardNumerical value

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.