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Saturday, 31 October

JEE Main 2022 · ChemistryMultiple choiceTwo statementsMediumRecall

JEE Main 28 July 2022, Shift 2, Chemistry Q35

Question 35 of 90 in this shift, Chemistry question 5 of 30, Section A.

**Statement I** : An alloy of lithium and magnesium is used to make aircraft plates. **Statement II** : The magnesium ions are important for cell-membrane integrity. In the light the above statements, choose the *correct* answer from the options given below
  1. (1)Both Statement I and Statement II are true
  2. (2)Both Statement I and Statement II are falseOfficial answer
  3. (3)Statement I is true but Statement II is false
  4. (4)Statement I is false but Statement II is true

Official answer

Option 2

NTA final key.

Chapter
The s-Block Elements
Topic
s-Block Elements
Idea tested
Biological Role of Mg2+ and Ca2+

Same topic in other shifts

All s-Block Elements questions
  1. 6 Apr 2024, Shift 2 · Q66Match List - I with List - II. List - I (Alkali Metal) (A) Li (B) Na (C) Rb (D) Cs List - II (Emission Wavelength in nm) (I) 589.2 (II)…HardMatch the list
  2. 30 Jan 2024, Shift 2 · Q90Number of metal ions characterized by flame test among the following is ________.…MediumNumerical value
  3. 31 Jan 2024, Shift 2 · Q63Which of the following is least ionic?MediumSingle correct
  4. 6 Apr 2023, Shift 1 · Q67The standard electrode potential of M+/M\mathrm{M^+/M} in aqueous solution does not depend onMediumSingle correct
  5. 6 Apr 2023, Shift 1 · Q68The setting time of Cement is increased by addingEasySingle correct
  6. 6 Apr 2023, Shift 2 · Q66Structures of BeCl2\mathrm{BeCl_2} in solid state, vapour phase and at very high temperature respectively are:MediumSingle correct

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.