Question

Q10 The scientists now say that there are actually five states of matter A, B, C, D and E. The state A has a fixed volume but no fixed shape. The state B can be compressed easily by aplying pressure and state C has a fixed shape and volume. D and E are the fourth and fifth states respectively. Then choose the correct statements about A, B, C D and E i) State D can be formed in neon sign bulb ü) State E can be formed at super low temperatures iii) Camphor can change its state from C to B directly upon heating iv) The basic work about states E was done in the year 1907 by Indian scientist 1) i, ii, iv only 2) i, ii, iii only 3) ii, iii, iv only 4) i, ii, iii, iv []​

Answer 1

Answer:

a. The physical states are

• A-liquid B-gas

• C-solid

• D-plasma and

• E-Bose-Einstein condensate (BEC).

a. Ammonium chloride; and the name of

the process is sublimation.

b. Carbon dioxide

c. Water

d. Plasma is the state of matter that allows the sun and the other stars to glow.