20
18
16
2
Correct answer is A
No explanation has been provided for this answer.
The shape of a molecule of water is _______?
Non-linear
Octahedral
Pyramidal
Tetrahedral
Correct answer is A
No explanation has been provided for this answer.
The compound formed between 14X and 16Y is _______?
XY
XY2
X2Y
X4Y6
Correct answer is B
No explanation has been provided for this answer.
The Van der waals' forces are dominant intermolecular forces in_______?
Ammonium chloride
Chlorine
Sodium chloride
Water
Correct answer is B
No explanation has been provided for this answer.
How many orbits are contained in an atom with atomic number 13?
7
6
5
3
Correct answer is D
No explanation has been provided for this answer.