JEE Main 2023 · ChemistryNumerical answerNumerical valueMediumRecall

JEE Main 13 April 2023, Shift 2, Chemistry Q89

Question 89 of 90 in this shift, Chemistry question 29 of 30, Section B.

If the formula of Borax is

\mathrm{Na_2B_4O_x(OH)_y\cdot zH_2O}

, then

x+y+z=

______

Official answer

NTA final key.

Chapter: The p-Block Elements
Topic: Group 13 & 14
Idea tested: Borax and Boric Acid

Same topic in other shifts

All Group 13 & 14 questions

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4 Apr 2025, Shift 2 · Q57The elements of Group 13 with highest and lowest first ionisation enthalpies are respectively :EasySingle correct
4 Apr 2025, Shift 2 · Q58Given below are two statements : Statement (I) : The first ionisation enthalpy of group 14 elements is higher than the corresponding…MediumTwo statements

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.