JEE Main 2022 · ChemistryMultiple choiceSingle correctMediumConceptual

JEE Main 29 June 2022, Shift 2, Chemistry Q71

Question 71 of 90 in this shift, Chemistry question 11 of 30, Section A.

Aqueous solution of which of the following boron compounds will be strongly basic in nature?

(1) $\mathrm{NaBH_4}$
(2) $\mathrm{LiBH_4}$
(3) $\mathrm{B_2H_6}$
(4) $\mathrm{Na_2B_4O_7}$ Official answer

Official answer

Option 4

NTA final key.

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

Same idea in other shifts

Asked 3× in all

13 Apr 2023, Shift 2 · Q89If the formula of Borax is $\mathrm{Na_2B_4O_x(OH)_y\cdot zH_2O}$ , then $x+y+z=$ ______MediumNumerical value
26 Jul 2022, Shift 2 · Q70Given below are two statements: one is labelled as **Assertion A** and the other is labelled as **Reason R**. **Assertion A:** Boric acid…EasyAssertion–reason

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.