Advertisements
Advertisements
Question
Classify the following substances into elements and compounds
Mercury, sulphur, sugar, water, sand, gold, carbon, oxygen, alcohol, iron, marble, baking soda.
Solution
Element: Mercury, sulphur, gold, carbon, oxygen, iron.
Compound: Sugar, water, sand, alcohol, marble, baking soda.
APPEARS IN
RELATED QUESTIONS
Name the substance you will add to speed up sedimentation.
Tick the most appropriate answer.
How many times is a proton heavier than an electron?
- 1500
- 1800
- 1840
- none of these
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Vinegar
State four differences between compounds and mixtures.
What are the advantages of chromatography?
Name: a Liquid Metal
Tick (√) the correct alternative from the choice given for the following statement.
Sugar is a compound which consists of the elements
Give the name of the radical - CO3
Complete the statement given below by filling in the blank with the correct word.
An element is a pure substance which cannot be broken down by physical or _________ methods.
Select the correct answer from the choice given below.
The unreactive non-metallic element