1

### IIT-JEE 2000 Screening

Molecular shape of SF4, CF4 and XeF4 are
A
the same, with 2, 0 and 1 lone pair of electrons
B
the same, with 1, 1 and 1 lone pair of electrons
C
different, with 0, 1 and 2 lone pairs of electrons respectively
D
different, with 1, 0 and 2 lone pairs of electrons respectively
2

### IIT-JEE 1999

The geometry of H2S and its dipole moment are
A
angular and non-zero
B
angular and zero
C
linear and non-zero
D
linear and zero
3

### IIT-JEE 1999

The correct order of increasing C - O bond length of CO, $CO_3^{2-}$, CO2 is
A
$CO_3^{2-}$ < CO2 < CO
B
CO2 < $CO_3^{2-}$ < CO
C
CO < $CO_3^{2-}$ < CO2
D
CO < CO2 < $CO_3^{2-}$
4

### IIT-JEE 1998

Read the following Assertion and Reason and answer as per the options given below

Assetion: LiCl is predominantly a covalent compound

Reason : Electronegativity difference between Li and Cl is too small
A
If both assertion and reason are correct and reason is the correct explanation of the assertion
B
If both assertion and reason are correct and reason is not the correct explanation of the assertion
C
If assertion is correct but reason is incorrect
D
If assertion is incorrect but reason is correct