Advertisements
Advertisements
प्रश्न
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – a gas with a pungent, choking odour which is lighter than air
Advertisements
उत्तर
A gas with a pungent, choking odour which is lighter than air is Ammonia
संबंधित प्रश्न
Differentiate between:
Homogenous and heterogenous substances
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Marble
Give two examples of the following.
Metals which are soft
Name: Two substances used to make electric wires
Give reason: Graphite is used to make a lead of the pencils.
Fill in the blank
A metal which is a poor conductor of electricity is _______.
Who are my companions?
| Group 'A' | Group 'B' |
| 1. Stainless steel | (a) Non-metal |
| 2. Silver | (b) compound |
| 3. Bhajani mixture for milling | (c) Mixture |
| 4. Salt | (d) Element |
| 5. Coal | (e) Alloy |
| 6. Hydrogen | (f) Metal |
The first letter of an element is always written in ______ letter.
Atoms: Fundamental particle of an element::______ : Fundamental particles of a compound.
Matter is its simplest form is called ______.
