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Subject :NSO    Class : Class 7

Fill in the blanks by choosing an appropriate option.

When sugar is dissolved in water, it undergoes a (i) change but if sugar is heated in a test tube over the Bunsen burner flame, it first melts, turns brown and finally turns (ii) . The new substance formed is (iii) and the change is a (iv) change.

(i) (ii) (iii) (iv)
A Physical, reversible Black Charcoal Chemical, irreversible
B Physical, irreversible Black Coal Chemical, irreversible
C Physical, irreversible Red Charcoal Chemical, reversible
D Physical, reversible Red Coal Chemical, reversible

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