Question

18. Purification of salt (that we get from sea water) can
be done by
(1) Chromatography (2) Centrifugation
(3) Crystallisation (4) Sublimation
19. The value of "-40°C" in Kelvin scale is equal to
(1) 233K
(2) 300 K
(3) 213K
(4) 313 K
0. The temperature at which a solid melts to become
a liquid at the atmospheric pressure is called its
(1) Freezing point (2) Melting point
(3) Boiling point (4) Triple point
AL​

Answer 1

Answer:

18) crystallization

19)233k

20)melting point

Answer 2

Answer:

18)crystallisation

19)-40°k(options are wrong)

20)melting point

Explanation:

✨️✨️✨️★·.·´¯`·.·★ hope it will help you please mark me as a brainlist ★·.·´¯`·.·★✨️✨️✨️