P changes into Q on heating. On further heating Q changes into R. Select the option that correctly compares the properties of P, Q and R.
|A||Has fixed shape||Has fixed shape||Has no fixed shape|
|B||Has fixed volume||Has fixed volume||Has no fixed volume|
|C||Has fixed mass||Has no fixed mass||Has no fixed mass|
|D||Has fixed colour||Has no fixed colour||Has fixed colour|
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