Question

which one is not a true solution ?

(a) Salt solution
(b) sugar solution
(c) milk in water
(d) glucose in water

A physical change
(a ) can be reversed
(b) cannot be reversed
(c) can yield different
compounds
(d) all of these

which of the following is a physical change ?
(a) rusting of iron
(b) combustion of hydrogen
(c) magnesium wire is burnt
(d) iron is magnetised

which is not a chemical change ?
(a) burning of coke
(b) burning of lpg in kitchen
(c) exposure of na metal to atmosphere
(d) interconversion of states
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Answer 1

A physical change

(a ) can be reversed

(b) cannot be reversed

(c) can yield different

compounds

(d) all of these

Answer 2

Answer:

1.milk in water

2.all of these.

3.b

4.d