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Chemistry · p-Block (I) (Grp. 13, 14)

JEE Main 2026 — 21 January, Morning Shift — Question 51

Given below are two statements : one is labelled as Statement I and the other is labelled as Statement II :

Statement I: The number of pairs among [ SiO2,CO2\mathrm{SiO}_{2}, \mathrm{CO}_{2} ], [SnO,SnO2],[PbO,PbO2]\left[\mathrm{SnO}, \mathrm{SnO}_{2}\right],\left[\mathrm{PbO}, \mathrm{PbO}_{2}\right] and [GeO,GeO2]\left[\mathrm{GeO}, \mathrm{GeO}_{2}\right], which contain oxides that are both amphoteric is 2 .

Statement II : BF3\mathrm{BF}_{3} is an electron deficient molecule can act as a lewis acid, forms adduct with NH3\mathrm{NH}_{3} and has a trigonal planar geometry.

In the light of the above statement, choose the correct answer from the option given below.

  1. Option A:

    Both Statement I and Statement II are true.

  2. Option B:

    Both Statement I and Statement II are false.

  3. Option C:

    Statement I is true but Statement II is false.

  4. Option D:

    Statement I is false Statement II is true.

    Correct

Answer: D

Step-by-step solution

⇒SiO2,CO2,GeO,GeO2\Rightarrow \mathrm{SiO}_{2}, \mathrm{CO}_{2}, \mathrm{GeO}, \mathrm{GeO}_{2} are acidic in nature. SnO,SnO2,PbO,PbO2\mathrm{SnO}, \mathrm{SnO}_{2}, \mathrm{PbO}, \mathrm{PbO}_{2} are amphoteric in nature. ⇒BF3\Rightarrow \mathrm{BF}_{3} is lewis acid acoording to lewic octet theory and has sp2\mathrm{sp}^{2} hybridization with trigonal planar geometry and it can accept lone pair form ammonia to form adduct.

Answer key and solution verified before publishing.

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Exam
JEE Main 2026
Paper
21 January, Morning Shift
Subject
Chemistry
Chapter
p-Block (I) (Grp. 13, 14)
Topic
Compounds of Group 13 Elements - Preparation and Properties
Given below are two statements : one is labelled as Statement I and… | JEE Main 2026 PYQ with Solution · DhiX AI