Advertisements
Advertisements
Question
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Potassium fluoride
Advertisements
Solution
Step 1: Write the symbols of the radicals.
K F
Step 2: Write the valency below the respective radical.
K F
1 1
Step 3: Cross-multiply symbols of radicals with their respective valency.
Step 4: Write down the chemical formula of the compound. KF

RELATED QUESTIONS
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Miscible liquids having slightly different boiling points can be separated by the
- evaporation
- distillation
- fractional distillation
- sedimentation
Name the type of chemical reaction shown by the following equation:
NaOH + HCl → NaCl + H2O
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Sodium chloride
Define the following term:
Precipitate
What is observed in performing the following :
| Hydrogen | Oxygen | Carbon dioxide | Chlorine | |
| Litmus test | ||||
| Apply a burning splint to the gas | ||||
| Colour of gas | colourless | colourless | colourless | greenish-yellow |
| Odour of gas |
What is a chemical reaction?
Explain the term chemical reaction with special reference to reactants and products.
What is the role of a catalyst in a chemical reaction?
Anaerobic bacteria digest animal waste and produce biogas (Change – A). The biogas is then burnt as fuel (Change – B). The following statements pertain to these changes. Choose the correct one.
Which of the following is/are true when milk changes into curd?
- Its state is changed from liquid to semi solid.
- It changes colour.
- It changes taste.
- The change cannot be reversed.
Choose the correct option from below:
