— Physical Chemistry Chemistry Question
Molecular Structure and Bonding
Mark by the "+" in a corresponding window those molecules for which the assertions written on the left side of the Table, are true.
Model Answer
Molecule Assertion
C2H4 N2H4 H2O2 H2F2
There is a covalent bond between two equal atoms
+ + +
The molecule contains a double bond
+
The molecule is planar
+ +
The molecule is polar + + +
There is also a hydrogen bond in the molecule
+
It has basic properties in relation to water
+
The following assertion and Table are incomplete. Fill in the dotted places by a missing word and the missing formulas, respectively.
Assertion : The electronic structures of the molecules (ions) being placed in the Table one under the other are . . . . . . . . . . . . . . . . . . . . . . . . .
Model Answer
Assertion : The electronic structures of the molecules (ions) being placed in the Table under the other are isoelectronic .
CH4 C2H6 −2 3CO CO2 −2 42OC −2 2C
+ 4NH +2 62HN − 3NO + 2NO N2O4 N2