Question

Q 1. true or false

1 . change of flour into dough is a physical change. (true or false )
2. burning of fuels is a chemical change . ( true or false )
3. rusting of iron is a reversible change . ( true or false )
4. no new substance is formed in a chemical change.
( true or false )

please give me the answer and this is my test paper.
this is very important . and please give the answer please .​

Answer 1

Answer:

1. true

2. true

3. false

4. false

Answer 2

Answer:

1. true 2.true 3.false 4. false