Learn

Friday, 9 October

JEE Main 2025 · ChemistryMultiple choiceTwo statementsMediumConceptual

JEE Main 2 April 2025, Shift 2, Chemistry Q66

Question 66 of 75 in this shift, Chemistry question 16 of 25, Section A.

Given below are two statements : Statement (I) : Neopentane forms only one monosubstituted derivative. Statement (II) : Melting point of neopentane is higher than n-pentane. In the light of the above statements, choose the most appropriate answer from the options given below :
  1. (1)Both Statement I and Statement II are correctOfficial answer
  2. (2)Both Statement I and Statement II are incorrect
  3. (3)Statement I is correct but Statement II is incorrect
  4. (4)Statement I is incorrect but Statement II is correct

Official answer

Option 1

NTA final key.

Chapter
Hydrocarbons
Topic
Alkanes and Free Radicals
Idea tested
Melting Point Alternation Effect

Same topic in other shifts

All Alkanes and Free Radicals questions
  1. 2 Apr 2026, Shift 1 · Q73One mole of an alkane (x) requires 88 mole oxygen for complete combustion. Sum of number of carbon and hydrogen atoms in the alkane (x)…EasyNumerical value
  2. 2 Apr 2026, Shift 2 · Q64The compound (X) on heating in the presence of anhydrous AlCl3_3 and HCl gas gives 2,4-dimethyl pentane (ii) aromatization gives toluene…EasySingle correct
  3. 5 Apr 2026, Shift 2 · Q72RMgI when treated with ice cold water liberated a gas which occupied 1.4 dm3^3/g at STP. The gas produced is further reacted with iodine…MediumNumerical value
  4. 6 Apr 2026, Shift 1 · Q65Given below are two statements: Statement I: Methane can be prepared by decarboxylation of sodium ethanoate, Kolbe's electrolysis of…MediumTwo statements
  5. 6 Apr 2026, Shift 2 · Q72An alkane (Y) requires 8 moles of oxygen for complete combustion and on chlorination with Cl2/hν\mathrm{Cl_2}/h\nu, (Y) gives only one…MediumNumerical value
  6. 8 Apr 2026, Shift 2 · Q65n-Butane on monochlorination under photochemical condition gives an optically active compound "P". "P" on further chlorination gives…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 42 of the 174 JEE Main shifts held from 2017 to 2026.