Advertisements
Advertisements
प्रश्न
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Water
उत्तर
Step 1: Write the symbols of the radicals.
H O
Step 2: Write the valency below the respective radical.
H O
1 2
Step 3: Cross-multiply symbols of radicals with their respective valency.
Step 4: Write down the chemical formula of the compound.
संबंधित प्रश्न
FILL IN THE BLANK
A .............. change is a temporary change.
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Sodium chloride
Give an example of a reaction where the following are involved
Light
Give an example of the following chemical change.
A reaction where colour change is noticed
Give a chemical test to distinguish between the following gases.
H2 and CO2
Give balanced equation for the following conversion affected by heat alone on the substance:
Zinc nitrate to nitrogen dioxide
Complete the table given below.
| Heat on Zinc nitrate | Colour of residue |
The percentage composition of Nitrogen in Ureas is ______.
______ is a natural indicator.
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 the taste.
- The change cannot be reversed.
Choose the correct option from below:
