Chemistry chapter 4 book 1

1.     When two ice cubes are pressed over each other they unite to form a single cube. It is due to

a)     Dipole-dipole interaction

b)    Covalent bond

c)     Van dar Waal’s forces

d)    H-bond formation

2.     Which of the following liquid has the lowest vapor pressure at the 32⁰C

a)     Ether

b)    Chloroform

c)     Ethanol

d)    Water

3.     CO₂ and SO₂ both are the tri-atomic molecules but the heat of vaporization of  SO₂ is greater than the CO₂ due to

a)     Greater EN character of S

b)    Greater size of SO₂

c)     SO₂  is polar, CO₂ is non-polar

d)    SO₂  is more acidic in nature than CO₂

1.d

2.d

3.c