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Q.

Statement I : During fire polishing of glass, glass is heated and then cooledStatement II : On heating the glass melts and on cooling the surface of the liquid tends to take the rounded shape at the edges which becomes smooth

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a

Statement I and II are correct

b

Statement I  is correct and Statement II is incorrect

c

Statement I is incorrect and statement II is correct

d

Both statement - I and II are incorrect

answer is A.

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Detailed Solution

On heating the glass melts and on cooling the surface of liquid tends to take a round shape at the edges which becomes smooth.
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