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Saturday, 31 October

JEE Main · Chemistry · Electrochemistry

Predicting Products

JEE Main asked Predicting Products 2 times in 2 of the 108 shifts Lumi analysed, in 2020 and 2025. It belongs to Faraday's Laws of Electrolysis, in Electrochemistry (Chemistry). The longest wait between two years asking it was 5 years.

Updated 2026-10-24

Times asked
2
in 2 shifts
Years
2 of 8
First asked
2020
last in 2025
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020 and 2025. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.10.20’170.08’200’210’220’230’240.13’250’26

Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 0 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 1 in 8 shifts · 2026: 0 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20260 of 9
  • 20251 of 8
  • 20240 of 18
  • 20230 of 12
  • 20220 of 24
  • 20210 of 24
  • 20201 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Single correct is the usual form. Skill tested: conceptual.

  • Statement i/ii on electrolysis products
  • Which metal deposits first in electrolysis

Difficulty

Easy 0Medium 2Hard 0

Every question was multiple choice.

Every question

All 2 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 7 Apr 2025, Shift 2 · Q56Given below are two statements : 1 M aqueous solutions of each of Cu(NO3)2\mathrm{Cu(NO_3)_2}, AgNO3\mathrm{AgNO_3}, Hg2(NO3)2\mathrm{Hg_2(NO_3)_2},…MediumTwo statements
  2. 4 Sep 2020, Shift 2 · Q27250 mL of a waste solution obtained from the workshop of a goldsmith contains 0.1 M AgNO3\mathrm{AgNO_3} and 0.1 M AuCl. The solution was…MediumSingle correct

Shifts: 4 Sep 2020, Shift 2, 7 Apr 2025, Shift 2.

Same topic

Other ideas in Faraday's Laws of Electrolysis

Faraday's Laws of Electrolysis has 9 ideas JEE Main has asked; 4 of them came up in more than one question.

Topic analysisChapter analysisStudy this chapterAll repeated ideas