Question

1. Which of the followingis the molecular geometry for nitriteNO₂^-?

bent, trigonal planar
bent, tetrahedral
octahedral
linear
trigonal pyramidal

2.

What is the hybridization ofthe sulfur atom in SO₂?

sp
sp²
sp³
sp³d
sp³d²

3.

The lid is tightly sealed ona rigid flask containing 3.50 L H₂ at 17°C and 0.913 atm. If theflask is heated to 71 °C, what is the pressure in the flask?

0.770 atm
1.08 atm
2.95 atm
3.81 atm
13.3 atm

4.

What is the root-mean-squarevelocity of ethane molecules (C₂H₆) at 273K?

15.0 m/s
47.2 m/s
275 m/s
476 m/s
652 m/s

5.

Use VSEPR theory to predictthe molecular geometry of H₃O⁺.

trigonal-pyramidal
trigonal-planar
bent
T-shaped
linear

6.

What is the moleculargeometry for ICl₂- (iodine dichloride)?

linear, trigonal bipyramidal
square planar, octahedral
Trigonal pyramidal, tetrahedral
bent, tetrahedral
seesaw, trigonal bipyramidal

7.

What is the moleculargeometry around a central atom that is sp³hybridized and has one lone electron-pair?

bent
linear
trigonal-planar
trigonal-pyramidal
trigonal-bipyramidal

8.

Which of the following isa correct molecular geometry for phosphate ion,PO₄^-3 ?

tetrahedral
square planar
linear
trigonal pyramidal
octahedral

9.

Which of the following isthe correct molecular geometry for ozone,O₃?

tetrahedral
square planar
trigonal bipyramidal
linear
trigonal planar, bent