A factor that is considered most important when siting a chemical industry is?
nearness to other industrial establishments
nearness to raw materials
favourable climate conditions
availability of storage facilities
Correct answer is B
No explanation has been provided for this answer.
Which of the following pairs of elements has the greatest difference in electronegativity?
Na and F
Na and CI
Na and Br
Na and I
Correct answer is A
- sodium has an electro negativity of 0.93
- Hence; sodium and flourine have the highest difference.
| Fluorine | 4.0 |
| Chlorine | 3.0 |
| Bromine | 2.8 |
| Iodine | 2.5 |
A balanced chemical equation is based on the law of?
Periodicity
Constant composition
Multiple proportion
Conservation of mass
Correct answer is D
The law of conservation of mass is important because it allows us to predict the amount of product formed in a chemical reaction, as well as the amount of consumed reactant.
The oxidation state of chlorine in NaClO\(_3\) is?
+1
+3
+5
+6
Correct answer is C
The oxidation number of chlorine in NaClO3 is +5.
When an ionic bond is broken, bonding electrons are
shared between participating atoms
gained by the most electropositive atom
gained by the most electronegative atom
lost by both participating atoms.
Correct answer is B
No explanation has been provided for this answer.