IIT-JEE 2003 Screening | Chemical Bonding & Molecular Structure Question 32 | Chemistry

IIT-JEE 2003 Screening

MCQ (Single Correct Answer)

-0.5

Which of the following are isoelectronic and isostructural?
$$NO_3^-$$, $$CO_3^{2-}$$, $$ClO_3^-$$, SO₃

$$NO_3^-$$, $$CO_3^{2-}$$

SO₃, $$NO_3^-$$

$$ClO_3^-$$, $$CO_3^{2-}$$

$$CO_3^{2-}$$, SO₃

IIT-JEE 2002 Screening

MCQ (Single Correct Answer)

-0.5

Identify the least stable ion amongst the following

Li^-

Be^-

B^-

C^-

IIT-JEE 2002 Screening

MCQ (Single Correct Answer)

-0.5

Specify the coordination geometry around and hybridisation of N and B atoms in a 1 : 1 complex of BF₃ and NH₃

N : tetrahedral, sp³; B : tetrahedral, sp³

N : pyramidal, sp³; B : pyramidal, sp³

N : pyramidal, sp³; B : planar, sp²

N : pyramidal, sp³; B : tetrahedral, sp³

IIT-JEE 2002 Screening

MCQ (Single Correct Answer)

-0.25

Which of the following molecular species has unpaired electrons(s)?

N₂

F₂

$$O_2^-$$

$$O_2^{2-}$$

JEE Advanced Subjects