True / False? Tick or Cross X.
/5
QUESTIONS
CHOICE
RESULTS
1: Zinc oxide changes its colour from red to blue on heating .
2: The things that take part in a chemical reaction are called reactants.
3: Acidity in stomach is due to sulphuric acid.
4: When sugar is heated, it is changed into a black mass carbon and water.
5: Hardness is the ability of a material to with stand scratches and wear.
Answer1
Answer2
Answer3
Answer4
Answer5
X
X
X
X
X
30
