PREVIOUS EAMCET QUESTIONS with Detailed SOLUTION Day-2EAMCET

 

PREVIOUS EAMCET QUESTIONS with Detailed SOLUTION #Day-2 #EAMCET

QUESTION:

A 40% by mass sucrose solution is heated

till, it becomes 50% by mass. Calculate the

mass of water lost from 100 g of the solution

is [21 Sep 2020  Shift-II]

(a) 10 g (b) 15 g (c) 20 g (d) 25 g

ANSWER: (c)

Detailed Solution:

40% sucrose solution means it contains 60% water.

After heating, till 50% by mass sucrose remains.

Thus, % water lost =

(0.4

/0.5)×100 =80

Water lost=100-80=20 g

Hence, 

statement (c) is correct.