select the king of chemical
HCL
H2SO4
Na2CO3
NaOH
Which metal is used in Galvanisation
Zinc
Sulphur
Sodium
Magnesium
What is used in Photosynthesis
H2O
CO2
Light
All the above
What is the chemical formula of Rust
CaCO3
Fe2O3
CuO
Ca(OH)2
Tearing a paper is a
Physical change
Chemical change
Burning wood is a
Physical change
Chemical change
What is the colour of copper sulphate?
1 point
blue
green
red
white
Ice -water is a change in
colour
state
1Mixing of vinegar and Baking soda gives
oxygen
Nitrogen
carbon dioxide
Hydrogen
Answers
Answered by
2
Answer:
H2SO4
all of above
Fe2o3
chemical change
blue
state
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