Advertisements
Advertisements
Question
Fill in the blanks to complete the following paragraph.
The name of the product formed in the reaction of sulphur and ______ is sulphur dioxide gas. When sulphur dioxide is dissolved in ______, sulphurous acid is formed. The sulphurous acid turns ______ litmus paper to ______. Generally, oxides of ______ are acidic in nature.
After completing the paragraph, write two questions which you can raise on the basis of this information.
Solution
The name of the product formed in the reaction of sulphur and oxygen is sulphur dioxide gas. When sulphur dioxide is dissolved in water, sulphurous acid is formed. The sulphurous acid turns blue litmus paper to red. Generally, oxides of non-metals are acidic in nature.
Questions may be :
- Which gas is formed when sulphur reacts with oxygen?
- What is the nature of oxides of non-metals?
APPEARS IN
RELATED QUESTIONS
Short Answer Type Question:
What are the similarities between iron, copper, and aluminium?
Look at the pictures and identify the materials by which they are made of:
(paper, clay, glass, wood, plastic, metal rubber, wax
![]() |
|
![]() |
|
![]() |
____________ | ____________ | ____________ | ___________ | _____________ |
![]() |
![]() |
![]() |
![]() |
![]() |
____________ | ____________ | ____________ | ____________ | ____________ |
Stone is transparent, while glass is opaque.
Chalk dissolves in water.
Oil mixes with water.
Name some examples for shiny materials?
Differentiate hard and soft materials.
Some of the following statements are incorrect. Find the incorrect statements and correct them.
- The property of metals by virtue of which they can be drawn into wires is called ductility.
- Metals are good conductors of electricity but poor conductor of heat.
- Articles made up of metals produce ringing sound when struck hard.
- Oxides of non-metals and metals are acidic in nature.
- A less reactive metal displaces a more reactive metal from its salt solution in water.
Complete the crossword given in figure with the help of the clues.
Across
1. Which is generally hard, ductile, malleable and sonorous.
2. A metal is called so, it can be drawn into wires.
3. Metal bells are used because of this property.
Down
4. A metal generally used for making jewellery.
5. A metal which -is liquid at room temperature.
6. A metal which reacts with acid as f well as base to form hydrogen gas.
7. Substances used to enhance the growth of plants.
8. Property by virtue of which metals can be beaten into thin sheets.
Which of the following materials is not lustrous?