Question

Solution

Correct option is

Gases and liquids have viscosity as a common property

Both gases and liquid possess fluidity and hence, viscosity. Molecules in the solid state do not have translational motion.

SIMILAR QUESTIONS

Q1

Gold (at wt. 197g mol-1) crystallises is a cubic closest packed structures (the face – centred cubic) and has a density of 19.3g/cm2. Its atomic radius is

Q2

Calcium metal crystallizes in fcc lattice with edge length 556 pm. Calculate the density (in g cm-3) of metal if it contains 0.2% Schottky defects.

Q3

Which of the following statements about amorphous solids is incorrect?

Q4

An alloy of Cu, Ag and Au is found to have Cu forming the simple cubic closed packed lattice. If the Ag atoms occupy the face centres and Au is present at the body centre, the formula of the alloy will be

Q5

If the radius ratio is in the range of 0.414 – 0.732, then the coordination number will be

Q6

Quartz is a crystalline variety of

Q7

X – ray analysis shows that the unit cell length in NaCl is 562.8 pm. Calculate the density you would expect on this basis,

NA = 6.023 × 1023 mol-1.

Q8

If the distance between Na+ and Cl- ions in NaCl crystal is ‘a’ pm what is the length of the cell edge?

Q9

A crystalline solid

Q10

A compound is formed by elements A and B. this crystallizes in the cubic structure when atoms A are at the corners of the cube and atoms B are at the centre of the body. The simplest formula of the compound is