AIPMT 2007 | Chemical Bonding and Molecular Structure Question 90 | Chemistry

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AIPMT 2007

MCQ (Single Correct Answer)

-1

In which of the following pairs, the two species are isostructural?

SO$${_3^{2 - }}$$ and NO$${_3^{ - }}$$

BF₃ and NF₃

BrO$${_3^{ - }}$$ and XeO₃

SF₄ and XeF₄

AIPMT 2006

MCQ (Single Correct Answer)

-1

The electronegativity difference berween N and F is greater than that between N and H yet the dipole moment of NH₃ (1.5D) is larger than that of NF₃ (0.2 D). This is because

in NH₃ the atomic dipole and bond dipole are in the opposite directions whereas in NF₃ these are in the same direction

in NH₃ as well as in NF₃ the atomic dipole and bond dipole are in the same direction

in NH₃ the atomic dipole and bond dipole are in the same direction whereas in NF₃ these are in opposite directions

in NH₃ as well as in NF₃ the atomic dipole and bond dipole are in opposite directions.

AIPMT 2006

MCQ (Single Correct Answer)

-1

Which of the following is not a correct statement?

Multiple bonds are always shorter than corresponding single bonds.

The electron-deficient molecules can act as Lewis acids.

The canonical structures have no real existence.

Every AB₅ molecule does in fact have square pyramid structure.

AIPMT 2006

MCQ (Single Correct Answer)

-1

Which of the following is not isostructural with SiCl₄ ?

NH₄^$$-$$

SCl₄

SO₄^2$$-$$

PO₄^3$$-$$

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