JEE Main 2022 · 29 Jun · Shift 2 · Chemistry Q63

ChemistrySingle correct+4 / -1Question 63 of 90

Consider the species $\mathrm{CH_4}$ , $\mathrm{NH_4^+}$ and $\mathrm{BH_4^-}$ . Choose the correct option with respect to the there species.

They are isoelectronic and only two have tetrahedral structures.

They are isoelectronic and all have tetrahedral structures.

Only two are isoelectronic and all have tetrahedral structures.

Only two are isoelectronic and only two have tetrahedral structures.

Answer and worked solution

Official answer: B

All have 10 electrons and four bond pairs on the central atom: isoelectronic and tetrahedral.

(B)

Topics:VSEPR theory

JEE Main 2022 · 29 Jun · Shift 2, Chemistry question 63