Classify these changes into reversible and irreversible. [5 MARKS]

$\begin{matrix} S . N o & C h a n g e s 1 & D i s s o l v i n g s a l t i n w a t e r 2 & M e l t i n g i c e c u b e s 3 & R e l e a s e o f s t e a m f r o m p r e s s u r e c o o k e r 4 & R i p e n i n g o f f r u i t s 5 & F r e e z i n g o r a n g e j u i c e b y c o o l i n g \end{matrix}$

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Solution

Classifications: 1 Mark each

$\begin{matrix} S . N o & C h a n g e s & T y p e o f c h a n g e 1 & D i s s o l v i n g s a l t i n w a t e r & R e v e r s i b l e 2 & M e l t i n g i c e c u b e s & R e v e r s i b l e 3 & R e l e a s e o f s t e a m f r o m p r e s s u r e c o o k e r & I r r e v e r s i b l e 4 & R i p e n i n g o f f r u i t s & I r r e v e r s i b l e 5 & F r e e z i n g o r a n g e j u i c e b y c o o l i n g & R e v e r s i b l e \end{matrix}$

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$\begin{matrix} S . N o & C h a n g e s 1 & M e l t i n g o f I c e 2 & D i s s o l v i n g s u g a r i n w a t e r 3 & B u r n i n g r u b b e r 4 & B u r n i n g c a m p h o r 5 & M e l t i n g o f w a x \end{matrix}$

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S. No.	Change	Can be reversed (Yes/No)
1.	Sawing of a piece of wood	-
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3.	Dissolving sugar in water	-
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6.	Souring of milk	-

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\begin{matrix} S . N o & C h a n g e s 1 & G r o w t h o f a p l a n t 2 & F o r m a t i o n o f a c l o u d 3 & F o r m a t i o n o f s u g a r s o l u t i o n 4 & I n f l a t i o n o f T y r e 5 & M e l t i n g o f c h o c o l a t e \end{matrix}

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Classify these changes into reversible and irreversible. [5 MARKS] S.NoChanges1Dissolving salt in water2Melting ice cubes3Release of steam from pressure cooker4Ripening of fruits5Freezing orange juice by cooling

Classifications: 1 Mark each S.NoChangesType of change1Dissolving salt in waterReversible2Melting ice cubesReversible3Release of steam from pressure cookerIrreversible4Ripening of fruitsIrreversible5Freezing orange juice by coolingReversible