Advertisements
Advertisements
प्रश्न
Give reason: Graphite is used to make a lead of the pencils.
Advertisements
उत्तर
Graphite leaves mark on the paper and makes it black.
APPEARS IN
संबंधित प्रश्न
Define: Elements
Give two examples for the following: Metals
Tick the most appropriate answer.
The constituents of a mixture are present in
- a fixed ratio
- a variable ratio,
- the ratio of 2: 1
- none of these
Define: Compounds
Classify the following substances into elements and compounds
Mercury, sulphur, sugar, water, sand, gold, carbon, oxygen, alcohol, iron, marble, baking soda.
Give the symbols of: Carbon, calcium, copper, chlorine, cobalt, argon.
Give two examples of the following.
Non-metals which are lustrous
Indicate whether the following statement is true or false:
A compound is made up of just one kind of atom
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – two coloured gases (with their colours)
Select the correct answer from A, B, C, D & E for the statement given below :
A mixture consisting of elements & a compound.
