Advertisements
Advertisements
प्रश्न
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Sodium chloride
Advertisements
उत्तर
Step 1: Write the symbols of the radicals.
Na Cl
Step 2: Write the valency below the respective radical.
Na Cl
1 1
Step 3: Cross-multiply symbols of radicals with their respective valency.
Step 4: Write down the chemical formula of the compound.

संबंधित प्रश्न
Give reason .
A person suffering from acidity is advised to take an antacid.
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Reduction reaction is the exact opposite of
- displacement reaction
- decomposition reaction
- oxidation reaction
- none of these
What are biocatalysts ?
Fill in the blank.
Melting of ice is a _______ change.
State the original colour of the following substance and colour of residue obtained after heating.
Ammonium dichromate
Complete the table given below.
| Addition of dil. H2SO4 to FeS | Odour of gas evolved |
________ is a chemical substance which alters the speed of a chemical reaction.
Give an example of a chemical reaction for the following situation:
A change in colour is observed
Chemical changes are important in our day-to-day life. Give examples.
Collect information about the types of fuels used for cooking in your area. Discuss with your teachers/parents/others which fuels are less polluting and why.
