Question

Why does micelle formation take place when soap is added to water?Will a micelle be formed in other solvents?

Answer 1

Answer:

15. Which of the following salts can produce only two types of radicals?

Options:

(a)

NaKCO3

(b)

CaOCl2

(c)

NH HSO 4 4

(d)

Na NH HPO  4 4 

16. The weight of an empty China dish is 39 g and when a saturated solution of potassium

nitrate is poured into it, its weight is 108 g at

50C

. After evaporating the solution to

dryness, if the weight of the dish along with the crystals is 72 g then the solubility of

potassium nitrate at

50C

is _____.

Options:

(a) 83.9

(b) 95.6

(c) 91.6

(d) 87.4

17. If the roots of the quadratic equation

2

ax bx c    0

are



and



, then the equation

whose roots are

2 

and

2



is

Options:

(a)

 

2 2 2 2 a x b ac x c     2 0

(b)

2 2 2 2 a x b x c    0

(c)

 

2 2 2 2 a x b ac x c     2 0

(d)

 

2 2 2 2 a x b ac x c     2 0

18. If

2 2

Answer 2

Explanation:

surface of water with the ionic and in water and the hydrocarbon tail producing auto water inside water is molecule show a unique orientations that keeps the hydrocarbon portion out of the water this is done by forming clusters of molecules in which the hydrophobic tales are in the interior of the cluster and one of the surface of cluster ionic bonds are presentthis formation of clash of molecules is called Michael to wash away the laws and dirt particles in the form of Michaels from the surface of the cloth it is easier script mechanical your beta 9 educated in washing machine in the form of a microscope is equal to clean since the old is being connected in the centre of Michael Michael stairs calories in the solution and does not come together to precipitate due to i9 represents hence the dirt suspended in the Michaels is also easily