IIT-JEE 1995 Screening | Chemical Bonding & Molecular Structure Question 46 | Chemistry

IIT-JEE 1995 Screening

MCQ (Single Correct Answer)

-0.25

Which one is most ionic

P₂O₅

CrO₃

MnO

Mn₂O₇

IIT-JEE 1993

MCQ (Single Correct Answer)

-0.25

Pick out the isoelectronic structures from the following
I. $$CH_3^+$$
II. $$H_3O^+$$
III. $$NH_3$$
IV. $$CH_3^-$$

I and II

III and IV

I and III

II, III and IV

IIT-JEE 1992

MCQ (Single Correct Answer)

-0.25

The maximum number of hydrogen bonds a water molecule can form is

IIT-JEE 1992

MCQ (Single Correct Answer)

-0.25

The cyanide ion, CN^- and N₂ are isoelectronic, But in contrast to CN^-, N₂ is chemically inert, because of

low bond energy

absence of bond polarity

unsymmetrical electron distribution

presence of more number of electrons in bonding orbitals

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